On the Moor: References

Prologue

• Amos, J. (2007, July 18). Megaflood ‘made Island Britain’. BBC News website.
  http://news.bbc.co.uk/1/hi/sci/tech/6904675.stm
• BBC Radio 4 (2007, June 28). In Our Time: The Permian-Triassic Boundary. BBC website.
  http://www.bbc.co.uk/programmes/b007r285
• BBC Radio 4 (2009, October 22). In Our Time: The Geological Formation of Britain. BBC website.
  http://www.bbc.co.uk/programmes/b00n8t48
• Benton, M.J. (2008). The History of Life: a very short introduction. Oxford University Press.
• Rowan, C. (2009, January 13). Supercontinent cycles 3, Expanding Earth 0. Highly Allochthonous website.
  http://all-geo.org/highlyallochthonous/2009/01/supercontinent-cycles-3-expanding-earth-0/
• Shepherd, R. How Great Britain Formed. Discovering Fossils website.
  http://www.discoveringfossils.co.uk/how_britain_formed.htm
• Toghill, P. (2000). The Geology of Britain: An Introduction. Airlife Books.
• Wikipedia. Caledonian orogeny.
  http://en.wikipedia.org/wiki/Caledonian_orogeny

Introduction

• Pliny the Younger (c. 100). Epistulae (Letters), Book 1, Letter 6. (Quoted from memory, but widely available online.)

1. Niche

• Burkhardt, F.H. & Smith, S., eds. (1989). The Correspondence of Charles Darwin, vol. 5, 1851–1855. Cambridge University Press.
• Burkhardt, F.H. & Smith, S., eds. (1990). The Correspondence of Charles Darwin, vol. 6, 1856–1857. Cambridge University Press.
• Burkhardt, F.H. & Smith, S., eds. (1991). The Correspondence of Charles Darwin, vol. 7, 1858–1859. Cambridge University Press.
• Darwin, C.R. (1881). The Autobiography of Charles Darwin. The Life and Letters of Charles Darwin (Darwin, F., ed., 1887).
  http://www.gutenberg.org/files/2010/2010-h/2010-h.htm
• Desmond, A. & Moore, J. (1991). Darwin. Michael Joseph.
• Gould, S.J. (1980). Darwin's Middle Road. The Panda's Thumb: More Reflections in Natural History. Penguin.

2. Urnfield

• Barbour, R. (2013). Sir Thomas Browne: a life. Oxford University Press.
• Breathnach, C.S. (2005). Sir Thomas Browne (1605–1682). Journal of the Royal Society of Medicine, January 2005, vol. 98 no. 1 33-36.
  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1079241/
• Browne, T. (1658). Hydriotaphia Urn Burial; or, a discourse of the sepulchral urns lately found in Norfolk. The Works of Sir Thomas Browne, vol. 3 (Sayle, C., ed., 1907).
  http://www.gutenberg.org/files/39962/39962-h/39962-h.htm#HYDRIOTAPHIA
• Browne, T. (1672). Pseudodoxia Epidemica (6th edition). The Works of Sir Thomas Browne, vols. 1–3 (Sayle, C., ed., 1904-07).
  http://www.gutenberg.org/files/39960/39960-h/39960-h.htm#PSEUDODOXIA_EPIDEMICA
• Browne, T. (1682). Religio Medici. The Works of Sir Thomas Browne, vol. 1 (Sayle, C., ed., 1904).
  http://www.gutenberg.org/files/39960/39960-h/39960-h.htm#RELIGIO_MEDICI
• Butler, J. (2003). Life of Sir Thomas Browne. Luminarium, 30 January, 2003.
  http://www.luminarium.org/sevenlit/browne/brownebio.htm
• Calderdale Council. Register of Ancient Monuments, Reference number 1018234: Enclosed Bronze Age Urnfield.
  http://www.calderdale.gov.uk/environment/conservation/ancient-monuments/monuments-full.jsp?propno=HSVM43DWL2000
• Darwin, C.R. (1859). On the Origin of Species, 1st ed., ch. 13. John Murray.
  http://www.gutenberg.org/files/1228/1228-h/1228-h.htm
• Dickey, C. (2007). The Fate of His Bones. Cabinet magazine, Issue 28, ‘Bones’, Winter 2007/08.
  http://www.cabinetmagazine.org/issues/28/dickey.php
• Dickey, C. (2009). Cranioklepty: Grave Robbing and the Search for Genius. Unbridled Books.
• Ellis, P.B. (1990) The Celtic Empire: the First Millennium of Celtic History 1000BC–51AD. Guild Publishing.
• Gould, S.J. (2002). Age-Old Fallacies of Thinking and Stinking. I Have Landed: Splashes and Reflections in Natural History. Jonathan Cape.
• Gregory, T. (2013). They rudely stare about. London Review of Books, vol. 35 no. 13, 4 July 2013.
  http://www.lrb.co.uk/v35/n13/tobias-gregory/they-rudely-stare-about
• Manco, J. (2013). Ancestral Journeys: the peopling of Europe from the first venturers to the Vikings. Thames & Hudson.
• Osler, W. (1906). The Religio Medici. The Library, vol. VII.
  https://archive.org/details/nslibrarythe07libruoft
• Robbins, R.H. (2004). Browne, Sir Thomas (1605–1682), physician and author. Oxford Dictionary of National Biography. Oxford University Press.
  http://www.oxforddnb.com/view/article/3702
• Sebald, W.G. (2002). The Rings of Saturn. Vintage.
• Wikipedia. Urnfield culture.
  http://en.wikipedia.org/wiki/Urnfield_culture

3. In the Clouds

• Dawkins, R. (2004). The Ancestor’s Tale: a pilgrimage to the dawn of life. Weidenfeld & Nicolson.
• Galis, F., Kundrát, M. & Sinervo, B. (2003). An old controversy solved: bird embryos have five fingers. Trends in Ecology and Evolution, vol. 18 no. 1 January 2003.
• Roberts, A. (2011). Origins of Us, episode 1. BBC Television.
  http://www.bbc.co.uk/programmes/b013gmh1/episodes/guide
• Schwab, I.R. & Maggs, D. (2004). The falcon’s stoop. British Journal of Ophthalmology, Jan 2004; 88(1): 4.
  http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1771963/
• Shubin, N. (2008). Your Inner Fish: a journey into the 3.5 billion-year history of the human body. Allen Lane.
• Tucker, V.A. (2000). The deep fovea, sideways vision and spiral flight paths in raptors. Journal of Experimental Biology, 2000 Dec; 203(Pt 24):3745-54.
  http://www.ncbi.nlm.nih.gov/pubmed/11076738
• Tucker, V.A., Tucker, A.E., Akers, K. & Enderson, J.H. (2000). Curved flight paths and sideways vision in peregrine falcons (Falco peregrinus). Journal of Experimental Biology, 2000 Dec; 203(Pt 24):3755-63.
  http://www.ncbi.nlm.nih.gov/pubmed/11076739

4. White-arse

• Bairlein, F., Norris, D.R., Nagel, R., Bulte, M., Voigt, C.C., Fox, J.W., Hussell, D.J.T. & Schmaljohann, H. (2012). Cross-hemisphere migration of a 25 g songbird. Biology Letters of the Royal Society. doi:10.1098/rsbl.2011.1223
  http://rsbl.royalsocietypublishing.org/content/early/2012/02/13/rsbl.2011.1223
• Big Chief I-SPY (a.k.a. Warrell, C.) (1972). I-SPY Birds. Dickens Press.
• Cocker, M. & Mabey, R. (2005). Birds Britannica. Chatto & Windus.
• Defoe, D. (1724). Letter II, Containing a Description of the Sea-Coasts of Kent, Sussex, Hampshire, and of Part of Surrey. A tour thro’ the whole island of Great Britain, divided into circuits or journies.
  https://ebooks.adelaide.edu.au/d/defoe/daniel/britain/
• Gill, V. (2012, February 15). Tiny songbird northern wheatear traverses the world. BBC Nature website.
  http://www.bbc.co.uk/nature/17027565
• Hudson, W.H. (1900). Nature in Downland.
  http://gutenberg.net.au/ebooks03/0300651.txt
• Newton, I. (2010). Bird Migration. Collins.
• Swift, J. (1746). Directions to Servants in General, 5th ed.
  http://jonathanswiftarchive.org.uk/search/text_4_18_5.html?page=d2e780
• White, G. (1789). The Natural History of Selbourne, Letter XIII.
  http://www.gutenberg.org/ebooks/1408

5. Trig Point

• Bench Mark Database.
  http://www.bench-marks.org.uk/
• Christie, Th. (2012, May 25). Mapping the history of triangulation. The Renaissance Mathematicus website.
  http://thonyc.wordpress.com/2012/05/25/mapping-the-history-of-triangulation/
• Crane, N. (1999). Two Degrees West: an English journey. Viking.
• FitzRoy, R. (1839). Narrative of the surveying voyages of His Majesty’s Ships Adventure and Beagle between the years 1826 and 1836, describing their examination of the southern shores of South America, and the Beagle’s circumnavigation of the globe. Vol. II: Proceedings of the second expedition, 1831-36, under the command of Captain Robert Fitz-Roy, R.N. Colburn.
  http://darwin-online.org.uk/content/frameset?itemID=F10.2&viewtype=text&pageseq=1
• Hewitt, R. (2010). Map of a Nation: a biography of the Ordnance Survey. Granta.
• Trigpointing UK website.
  http://trigpointing.uk
• Walkup, N. (2005). Eratosthenes and the Mystery of the Stades. Mathematical Association of America website.
  http://www.maa.org/publications/periodicals/convergence/eratosthenes-and-the-mystery-of-the-stades-introduction
• Wikipedia. Great Trigonometrical Survey.
  http://en.wikipedia.org/wiki/Great_Trigonometrical_Survey
• Wikipedia. Principal Triangulation of Great Britain.
  http://en.wikipedia.org/wiki/Principal_Triangulation_of_Great_Britain
• Wikipedia. Retriangulation of Great Britain.
  http://en.wikipedia.org/wiki/Retriangulation_of_Great_Britain
• Wikipedia. Thales.
  http://en.wikipedia.org/wiki/Thales
• Wikipedia. Triangulation station.
  http://en.wikipedia.org/wiki/Triangulation_station
• Wikipedia. Triangulation.
  http://en.wikipedia.org/wiki/Triangulation

6. Grouse

• Avery, M. (2015). Inglorious: conflict in the uplands. Bloomsbury.
• Bircham, P. (2007). A History of Ornithology. Collins.
• Cherry-Garrard, A. (1922). The Worst Journey in the World: Antarctic 1910–1913. Picador Travel Classics edition (1994).
• Darwin, C.R. (1859). On the Origin of Species, 1st ed. John Murray.
  http://www.gutenberg.org/files/1228/1228-h/1228-h.htm
• Darwin, C.R. (1881). The Autobiography of Charles Darwin. The Life and Letters of Charles Darwin (Darwin, F., ed., 1887).
  http://www.gutenberg.org/files/2010/2010-h/2010-h.htm
• Edward Wilson of the Antarctic website.
  http://www.edwardawilson.com/
• Encyclopaedia Britannica (1911). Grouse.
  http://www.theodora.com/encyclopedia/g2/grouse.html
• MacIntyre, D. (1918). Heather and Grouse Disease. British Birds, vol. 12, no. 3, p.53–60.
  http://www.britishbirds.co.uk/article/heather-and-grouse-disease/
• Pero, T. (1999, January 08). Poet, pike and a pitiful grouse. Extract of an article in Wild Steelhead & Salmon magazine, Guardian website.
  http://www.theguardian.com/books/1999/jan/08/tedhughes
• Rogers, K. (2011, June 22). The Rise and Fall of the Canada Lynx and Snowshoe Hare. Encyclopaedia Britannica blog.
  http://blogs.britannica.com/2011/06/rise-fall-canada-lynx-snowshoe-hare/
• Stenseth, N.C., Falck, W., Bjørnstad O.N., & Krebs, C.J. (1997). Population regulation in snowshoe hare and Canadian lynx: Asymmetric food web configurations between hare and lynx. Proceedings of the National Academy of Sciences of the United States of America, PNAS 1997 94 (10) 5147-5152.
  http://www.pnas.org/content/94/10/5147.full
• Wikipedia. Edward Adrian Wilson.
  http://en.wikipedia.org/wiki/Edward_Adrian_Wilson
• Wilkins, J.S. (2009). Defining Species: a sourcebook from antiquity to today. Peter Lang.
• Wilkins, J.S. (2010, October 20). How many species concepts are there? Guardian, GrrlScientist blog.
  http://www.theguardian.com/science/punctuated-equilibrium/2010/oct/20/3

7. Flora

• Boulter, C.J., Reiss, M.J. & Sanders, D.L., eds. (2014). Darwin-Inspired Learning. Sense.
• CBOL Plant Working Group (2009). A DNA barcode for land plants. Proceedings of the National Academy of Sciences, 106 (31) 12794-12797. doi:10.1073/pnas.0905845106
  http://www.pnas.org/content/106/31/12794.full
• Darwin, C.R. letter to J.D. Hooker, 6 September [1860]. Darwin Correspondence Project, “Letter no. 2908”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-2908.xml
• Darwin, C.R. letter to J.D. Hooker, 29 July [1860]. Darwin Correspondence Project, “Letter no. 2880”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-2880.xml
• Darwin, C.R. (1875). Insectivorous Plants. John Murray.
  http://darwin-online.org.uk/content/frameset?itemID=F1217&viewtype=text&pageseq=1
• Darwin, E. (1791). The Botanic Garden, Part II, Containing The Loves of the Plants, a Poem, with Philosophical Notes.
  http://www.gutenberg.org/ebooks/10671
• James, K. (2014, December 8). “Hurrah! Hurrah!” DNA barcoding and the lost story of Darwin’s meadow. Molecular Ecologist blog:
  http://www.molecularecologist.com/2014/12/hurrah-hurrah-dna-barcoding-and-the-lost-story-of-darwins-meadow/
• King-Hele, D. (1999). Erasmus Darwin: A life of unequalled achievement. DLM.
• Litchfield, H., ed. (1904). Emma Darwin, wife of Charles Darwin. A century of family letters, Volume 2, Cambridge University Press.
  http://darwin-online.org.uk/content/frameset?keywords=reminiscences%20francis%20darwin&pageseq=258&itemID=F1552.2&viewtype=text
• Uglow, J. (2002). The Lunar Men: the friends who made the future. Faber & Faber
• University of California Museum of Paleontolgy website. Carl Linnaeus (1707–1778).
  http://www.ucmp.berkeley.edu/history/linnaeus.html
• Wikipedia. Carl Linnaeus.
  http://en.wikipedia.org/wiki/Carl_Linnaeus
• Wikipedia. The Botanic Garden.
  http://en.wikipedia.org/wiki/The_Botanic_Garden
• Wikipedia. Linnaean taxonomy.
  http://en.wikipedia.org/wiki/Linnaean_taxonomy

8. Tea break

• BBC Radio 4 (2004, December 16). In Our Time: The Second Law of Thermodynamics. BBC website.
  http://www.bbc.co.uk/programmes/p004y2bm
• Braterman, P. (2014, January 27). Kelvin, Rutherford, and the Age of the Earth: I, The Myth. 3 Quarks Daily website.
  http://www.3quarksdaily.com/3quarksdaily/2014/01/kelvin-rutherford-and-the-age-of-the-earth-i-the-myth.html
• Darwin, C.R. (1859). On the Origin of Species, 1st ed., ch. 9. John Murray.
  http://www.gutenberg.org/files/1228/1228-h/1228-h.htm
• Darwin, C.R. letter to J. D. Hooker, [28 February 1866]. Darwin Correspondence Project, “Letter no. 5020”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-5020.xml
• Darwin, C.R. letter to Charles Kingsley, 10 June [1867]. Darwin Correspondence Project, “Letter no. 5567”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-5567.xml
• Darwin, C.R. letter to Charles Pritchard, 12 October [1866]. Darwin Correspondence Project, “Letter no. 5240”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-5240.xml
• Stacey, F.D. (2000). Kelvin’s age of the Earth paradox revisited. Journal of Geophysical Research, vol. 105, no. B6, pp. 13,155–13,158.
  http://www.es.ucsc.edu/~rcoe/eart206/Stacey_Kelvin_JGR00.pdf
• Wikipedia. Entropy.
  http://en.wikipedia.org/wiki/Entropy
• Wikipedia. Introduction to entropy.
  http://en.wikipedia.org/wiki/Introduction_to_entropy
• Wikipedia. Second Law of Thermodynamics.
  http://en.wikipedia.org/wiki/Second_law_of_thermodynamics
• Wikipedia. Sir James Dewar.
  http://en.wikipedia.org/wiki/Sir_James_Dewar

9. Heather

• Bawden, T. (2014, October 1). Grouse shooting ‘is warming planet’ as peatlands burned to improve conditions for birds. Independent website.
  http://www.independent.co.uk/environment/climate-change/grouse-shooting-is-warming-planet-as-peatlands-burned-to-improve-conditions-for-birds-9765659.html
• Featherstone, A.W. Heather (Calluna vulgaris). Trees for Life website.
  http://treesforlife.org.uk/forest/species-profiles/heather/
• Hughes, Ted (1994). Wadsworth Moor. Elmet. Faber and Faber.
• Mabey, R. (1997). Flora Britannica. Chatto & Windus.
• Moorland Association website. Heather Moorland.
  http://www.moorlandassociation.org/heather-moorland/
• Plath, S. (2003). Wuthering Heights. Selected Poems. Faber and Faber.
• UC Davis ChemWiki. Carbon Cycle.
  http://chemwiki.ucdavis.edu/Biological_Chemistry/Biochemical_Cycles/Carbon_Cycle
• White, G. (1789). The Natural History of Selbourne, Letter VII to Thomas Pennant, Esq.
  http://www.gutenberg.org/ebooks/1408
• Wikipedia. Carbon cycle.
  http://en.wikipedia.org/wiki/Carbon_cycle

10. Identity Crisis

• O’Connor, J. (2011, November 6). Coming home to the Yorkshire Dales. Observer website:
  http://www.theguardian.com/travel/2011/nov/06/travel-yorkshire-bronte-christmas-workshops

11. Snow

• Trendacosta, K. (2014, November 26). What Caused These Rings of Ice to Form Around Rocks? io9 website.
  http://io9.com/what-caused-these-rings-of-ice-to-form-around-rocks-1663605773

12. Drumming

• Cocker, M. & Mabey, R. (2005). Birds Britannica. Chatto & Windus.
• Darwin, C.R. letter to Asa Gray, 3 April [1860]. Darwin Correspondence Project, “Letter no. 2743”.
  https://www.darwinproject.ac.uk/letter/DCP-LETT-2743.xml
• Darwin, C.R. (1871). The Descent of Man, and Selection in Relation to Sex. London: John Murray.
• Darwin, C.R. (1881). The Autobiography of Charles Darwin. The Life and Letters of Charles Darwin (Darwin, F., ed., 1887).
  http://www.gutenberg.org/files/2010/2010-h/2010-h.htm
• Jones, A.G. & and Ratterman, N.L. (2009). Mate choice and sexual selection: What have we learned since Darwin? PNAS 2009 106 (Supplement 1) 10001-10008. doi:10.1073/pnas.0901129106
  http://www.pnas.org/content/106/Supplement_1/10001.full
• van Casteren A., Codd J.R., Gardiner J.D., McGhie H., & Ennos A.R. (2010). Sonation in the male common snipe (Capella gallinago gallinago L.) is achieved by a flag-like fluttering of their tail feathers and consequent vortex shedding. The Journal of Experimental Biology 213, 1602-1608. doi:10.1242/jeb.034207
  https://www.ncbi.nlm.nih.gov/pubmed/20400646
• Wolley, J. (1858). On the Snipes’ “Neighing” or Humming Noise, and on its Tail-Feathers’ Systematic Value. By W. Meves, Conservator at the Zoological Riks-Museum in Stockholm. Translated and Communicated. Proceedings of the Zoological Society of London, Vol. 26, Iss. 1. doi:10.1111/j.1469-7998.1858.tb06364.x
  http://onlinelibrary.wiley.com/doi/10.1111/j.1469-7998.1858.tb06364.x/epdf

13. On the Level

• Hood, T. (1842). November. New Monthly Magazine.
  http://allpoetry.com/poem/8472903-No--by-Thomas-Hood

14. Shafts

• Bateman, J.F. & Rèvy, J.J. (1869). Channel Railway: description of a proposed cast-iron tube for carrying a railway across the Channel between the coasts of England and France. Vacher & Sons.
  https://books.google.co.uk/books?id=crEpAAAAYAAJ&hl=en
• British Listed Buildings website. Ventilation Shaft for Castle Carr Tunnel 400 Metres East of Weavers Gate Footpath, Wadsworth.
  http://www.britishlistedbuildings.co.uk/en-425148-ventilation-shaft-for-castle-carr-tunnel
• Burkhardt, F.H. et al., eds. (2002). The Correspondence of Charles Darwin, vol. 13: 1865, Appendix IV: Note on Darwin’s health. Cambridge University Press.
• Darwin, C.R. letter to J. D. Hooker, [29 April 1857]. Darwin Correspondence Project, “Letter no. 2084”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-2084.xml
• Desmond, A. & Moore, J. (1991). Darwin. Michael Joseph.
• Dodge, M. & Perkins, C. (2010). Maps, Memories and Manchester: The Cartographic Imagination of the Hidden Networks of the Hydraulic City. Paper for Mapping, Memory and the City: An International Interdisciplinary Conference, University of Liverpool, 25-26th February 2010.
  http://personalpages.manchester.ac.uk/staff/m.dodge/Dodge_Perkins-Hydraulic_City_submitted.pdf
• Hughes, Ted (1994). Widdop. Elmet. Faber and Faber.
• Russell, P. (2004). Bateman, John Frederic La Trobe (1810–1889), civil engineer. Oxford Dictionary of National Biography. Oxford University Press.
  http://www.oxforddnb.com/view/article/1668
• Summerscale, K. (2012). Mrs Robinson’s Disgrace: the private diary of a Victorian lady. Bloomsbury.
• Wikipedia. Moor Park, Farnham.
  http://en.wikipedia.org/wiki/Moor_Park,_Farnham

15. Skull

• Darwin, C.R. letter to Charles Lyell, [10 December 1859]. Darwin Correspondence Project, “Letter no. 2575”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-2575.xml
• Huxley, T.H. letter to Charles Darwin, 23 November 1859. Darwin Correspondence Project, “Letter no. 2544”.
  http://www.darwinproject.ac.uk/letter/DCP-LETT-2544.xml
• Kingsley, C. (1863). The Water-Babies.
  http://www.gutenberg.org/ebooks/1018
• Masefield, J. (1929). The Dead Knight. The Story of a Round House and Other Poems.
  http://www.gutenberg.org/ebooks/40717
• Owen, R. (1849). On the Nature of Limbs: a discourse. University of Chicago Press reprint (2007), with introductory essays by Amundson, R., et al.
• Owen, R. (1860). [Review of ‘On the Origin of Species’ & other works.] Edinburgh Review 111: 487-532.
  http://darwin-online.org.uk/content/frameset?viewtype=text&itemID=A30&pageseq=1
• Rupke, N. (1994). Richard Owen: Victorian Naturalist. Yale.
• Wikipedia. Homology (biology).
  http://en.wikipedia.org/wiki/Homology_%28biology%29
• Wikipedia. Skull.
  http://en.wikipedia.org/wiki/Skull
• Zimmer, C. (2014, September 5). The Erotic Endurance of Whale Hips. The Loom blog.
  http://phenomena.nationalgeographic.com/2014/09/05/the-erotic-endurance-of-whale-hips/

16. Wet

• BBC Radio 4 (2013, January 17). In Our Time: Comets. BBC website.
  http://www.bbc.co.uk/programmes/b01pw38n
• Harder, B. (2010, November 8). Earth contains a vast amount of water, but scientists are unsure of its origins. Washington Post website.
  http://www.washingtonpost.com/wp-dyn/content/article/2010/11/08/AR2010110804478.html
• Kluger, J. (2011, October 11). New Proof That Comets Watered the Earth. Time website.
  http://content.time.com/time/health/article/0,8599,2096512,00.html
• Morelle, R. (2014, December 10). Rosetta results: Comets ‘did not bring water to Earth’. BBC News website.
  http://www.bbc.co.uk/news/science-environment-30414519
• Palmer, J. (2011, October 6). Comet’s water ‘like that of Earth’s oceans’. BBC News website.
  http://www.bbc.co.uk/news/science-environment-15181123
• Sample, I. (2014, December 11). Rosetta discovers water on comet 67p like nothing on Earth . Guardian website.
  http://www.theguardian.com/science/2014/dec/10/water-comet-67p-earth-rosetta
• Wikipedia. Late Heavy Bombardment.
  http://en.wikipedia.org/wiki/Late_Heavy_Bombardment

17. Rooks

• Cocker, M. & Mabey, R. (2005). Birds Britannica. Chatto & Windus.
• Goldsmith, O. (18xx). A History of the Earth and Animated Nature, vol. II, Part Third: Birds. A Fullarton and Co. (undated, posthumous edition).
• Great Britain (1817). The Statutes of the Realm: Printed by Command of His Majesty King George the Third, in Pursuance of an Address of the House of Commons of Great Britain. From Original Records and Authentic Manuscripts, Volume 3. Dawsons of Pall Mall.
  https://books.google.co.uk/books?id=B7o4AQAAMAAJ&pg=PA425
• Jesse, E. (1834). Gleanings in Natural History: second series to which are added some extracts from the unpublished mss. of the late Mr. White of Selborne. John Murray.
  https://books.google.co.uk/books?id=iQQQAAAAYAAJ&pg=PA171
• Morelle, R. (2009, May 26). Rooks reveal remarkable tool-use. BBC News website.
  http://news.bbc.co.uk/1/hi/sci/tech/8059688.stm
• Shakespeare, W. (1623). Macbeth.
  http://www.gutenberg.org/ebooks/2264
• Virgil (29 BCE). The Georgics, part I.
  http://classics.mit.edu/Virgil/georgics.1.i.html
• White, G. (1775). Journal entry for January 20, 1775. Natural History of Selborne website.
  http://naturalhistoryofselborne.com/1775/01/20/january-20-1775/
• White, G. (1789). The Natural History of Selbourne, Letter XIII to Thomas Pennant, Esq.
  http://www.gutenberg.org/ebooks/1408
• Witherby, H.F. (1963). The Sequence of Plumages of the Rook, With Special Reference to the Moult of the “Face”. British Birds, vol. 7, no. 5, p.126–139.
  http://www.britishbirds.co.uk/article/the-sequence-of-plumages-of-the-rook-with-special-reference-to-the-moult-of-the-face/

18. Ice

• Brock, W.H. (2004). Tyndall, John (1820–1893), physicist and mountaineer. Oxford Dictionary of National Biography. Oxford University Press.
  http://www.oxforddnb.com/view/article/27948
• New York Times (1893, December 25). Mrs. Tyndall’s Fatal Error.
  http://query.nytimes.com/mem/archive-free/pdf?res=9F00E4D9173EEF33A25756C2A9649D94629ED7CF
• Royal Institution website. Interactive Timeline: John Tyndall.
  http://rigb.org/our-history/history-of-research/john-tyndall-timeline
• Royal Institution website. John Tyndall's radiant heat apparatus.
  http://rigb.org/our-history/iconic-objects/iconic-objects-list/tyndall-radiant-heat
• Tyndall, J. (1874). Address Delivered Before the British Association Assembled at Belfast, With Additions. Longmans, Green, and Co.
  http://darwin-online.org.uk/content/frameset?pageseq=1&itemID=A12&viewtype=text
• Tyndall, J. (1879). On Radiation. Fragments of Science: A Series of Detached Essays, Addresses, and Reviews, vol. 1, 6th ed. Longmans, Green, and Co.
  http://www.gutenberg.org/ebooks/24527
• White, G. (1775). Journal entry for January 20, 1775. Natural History of Selborne website.
  http://naturalhistoryofselborne.com/1775/01/20/january-20-1775/
• Wikipedia. Glaze ice.
  http://en.wikipedia.org/wiki/Glaze_ice
• Wikipedia. Greenhouse effect.
  http://en.wikipedia.org/wiki/Greenhouse_effect
• Wikipedia. Tyndall’s Setup For Measuring Radiant Heat Absorption By Gases.
  https://en.wikipedia.org/wiki/File:Tyndalls_setup_for_measuring_radiant_heat_absorption_by_gases_annotated.jpg
• Wikipedia. X Club.
  http://en.wikipedia.org/wiki/X_Club

19. St David’s Day

• Beeton, I. (1861). Lark Pie (an entree). Beeton’s Book of Household Management.
  http://www.mrsbeeton.com/21-chapter21.html#971
• Cocker, M. & Mabey, R. (2005). Birds Britannica. Chatto & Windus.
• Cresswell, W. (1994). Song as a pursuit-deterrent signal, and its occurrence relative to other anti-predation behaviours of skylark (Alauda arvensis) on attack by merlins (Falco columbarius). Behavioral Ecology and Sociobiology, vol. 34, iss.3, pp. 217-223. doi:10.1007/BF00167747
  http://link.springer.com/article/10.1007%2FBF00167747
• Darwin, C.R. (1871). The Descent of Man, and Selection in Relation to Sex. John Murray.
  http://darwin-online.org.uk/EditorialIntroductions/Freeman_TheDescentofMan.html
• Fletcher, P. (2004). World Musics in Context: A Comprehensive Survey of the World’s Major Musical Cultures. Oxford University Press.
• Telegraph (2009, April 13). The Lark Ascending is Britain’s favourite piece of classical music.
  http://www.telegraph.co.uk/culture/music/classicalmusic/5148060/The-Lark-Ascending-is-Britains-favourite-piece-of-classical-music.html
• Wilton, J. (2007, January 21). The Remarkable Sounds of Birds. ezine Articles website.
  http://ezinearticles.com/?The-Remarkable-Sounds-of-Birds&id=694601

20. Sky

• Black, R. (2012, January 30). Volcanic origin for Little Ice Age. BBC News website.
  http://www.bbc.co.uk/news/science-environment-16797075
• Brock, W.H. (2004). Tyndall, John (1820–1893), physicist and mountaineer. Oxford Dictionary of National Biography. Oxford University Press.
  http://www.oxforddnb.com/view/article/27948
• Darwin, C.R. (1846). An Account of the Fine Dust which often Falls on Vessels in the Atlantic Ocean. Quarterly Journal of the Geological Society of London. http://darwin-online.org.uk/content/frameset?viewtype=text&itemID=F1672&pageseq=1
• Koren, I., Kaufman, Y.J., Washington, R., Todd, M.C., Rudich, Y., Martins, J.V. & Rosenfeld, D. (2006). The Bodélé depression: A single spot in the Sahara that provides most of the mineral dust to the Amazon forest. Environmental Research Letters 1 (October–December 2006) 014005 doi:10.1088/1748-9326/1/1/014005
  http://iopscience.iop.org/1748-9326/1/1/014005/fulltext/
• Royal Institution website. John Tyndall's blue sky apparatus.
  http://rigb.org/our-history/iconic-objects/iconic-objects-list/tyndall-blue-sky
• Travis, D.J., Carleton, A.M. & Lauritsen, R.G. (2002). Climatology: Contrails reduce daily temperature range. Nature 418, 601 (8 August 2002), doi:10.1038/418601a
• Tyndall, J. (1869). On the Blue Colour of the Sky, the Polarization of Skylight, and on the Polarization of Light by Cloudy Matter Generally. Proceedings of the Royal Society of London, vol. 17, (1868–1869), pp. 223-233.
  http://www.jstor.org/stable/112380
• Tyson, P. (2006, April 18) The Contrail Effect: Are vapor trails from aircraft influencing the climate? PBS Nova website.
  http://www.pbs.org/wgbh/nova/space/contrail-effect.html
• Wikipedia. 2010 eruptions of Eyjafjallajökull.
  http://en.wikipedia.org/wiki/2010_eruptions_of_Eyjafjallaj%C3%B6kull
• Wikipedia. Rayleigh scattering.
  http://en.wikipedia.org/wiki/Rayleigh_scattering
• Wikipedia. Tyndall effect.
  http://en.wikipedia.org/wiki/Tyndall_Effect

21. Crash

• Air of Authority - A History of RAF Organisation (website). Air Vice-Marshal V C Otter (44999).
  http://www.rafweb.org/Biographies/Otter_VC.htm
• BBC News website (2002, February 3). Shipping forecast loses household name.
  http://news.bbc.co.uk/1/hi/uk/1798629.stm
• Daston, L. (2005). Lumpers v. Splitters. Review of Predicting the Weather: Victorians and the Science of Meteorology by Anderson, K. London Review of Books, vol. 27 no. 21 pp. 21-22.
  http://www.lrb.co.uk/v27/n21/lorraine-daston/lumpers-v-splitters
• Dickens, C. (1859). The Uncommercial Traveller.
  http://www.gutenberg.org/ebooks/914
• FitzRoy, R. (1860). On British Storms. Report of the Thirtieth Meeting of the British Association for the Advancement Of Science: held at Oxford in June and July 1860.
  http://www.archive.org/stream/reportofbritisha61brit/reportofbritisha61brit_djvu.txt
• Flickr user ‘maycontaintracesofnuts’. Pasujoba Paul searching for the crash site of Handley Page Heyford K6900, near Old Town, Hebden Bridge. Seen on Flickr website (account since deleted).
• Flickr user ‘pasujoba’ (2010, February 27). Handley Page Heyford K6900: Furrow in which the plane came to rest. Flickr website.
  https://www.flickr.com/photos/pasujoba44/4392086837/
• Lewis, S. (?) (undated). Aircraft down. New Mills website.
  http://www.stevelewis.me.uk/page17.php
• McConnell, A. (2004). FitzRoy [Fitzroy, Fitz-Roy], Robert (1805–1865), hydrographer and meteorologist. Oxford Dictionary of National Biography. Oxford University Press.
  http://www.oxforddnb.com/view/article/9639
• Sydney Morning Herald (1936, December 14). Bombers Crash. Lost in Fog. Three Men Killed. 93 Air Force Deaths in 1936.
  http://trove.nla.gov.au/ndp/del/article/17300354
• Wikipedia. Handley Page Heyford.
  http://en.wikipedia.org/wiki/Handley_Page_Heyford

22. Boundary

• Calderdale Council. Register of Ancient Monuments, Reference number 1015096: Churn Milk Joan.
  http://www.calderdale.gov.uk/environment/conservation/ancient-monuments/monuments-full.jsp?propno=HSVIE7DWL2000
• Calderdale Council. Register of Ancient Monuments, Reference number 1018236: Millers Grave.
  http://www.calderdale.gov.uk/environment/conservation/ancient-monuments/monuments-full.jsp?propno=HSVLLEDWL2000
• Clark, G. & Clark, A. (2001, January). Common Rights in Land in England, 1475–1839.
  http://www.econ.ucdavis.edu/faculty/gclark/papers/commons.pdf
• Hughes, Ted (1994). Churn-Milk Joan. Elmet. Faber and Faber.
• Northern Antiquarian website. Churn Milk Joan, Midgley Moor, West Yorkshire.
  http://megalithix.wordpress.com/2010/09/06/churn-milk-joan/
• Northern Antiquarian website. Greenwood Stone, Midgley Moor, West Yorkshire.
  http://megalithix.wordpress.com/2011/11/07/greenwood-stone/
• Northern Antiquarian website. Miller’s Grave, Midgley Moor, West Yorkshire.
  http://megalithix.wordpress.com/2009/05/27/millers-grave/
• Northern Antiquarian website. Robin Hood’s Penny Stone, Midgley Moor, West Yorkshire.
  http://megalithix.wordpress.com/2011/03/10/robin-hoods-pennystone/
• Wikipedia. Cup and ring mark.
  http://en.wikipedia.org/wiki/Cup_and_ring_mark
• Wikipedia. Inclosure Acts.
  http://en.wikipedia.org/wiki/Inclosure_Acts

23. Grandeur

• Barbour, R. (2013). Sir Thomas Browne: a life. Oxford University Press.
• Fox, G. (1694). George Fox, An Autobiography, Chapter VI: A New Era Begins, 1651–1652. Street Corner Society website.
  http://www.strecorsoc.org/gfox/ch06.html
• Ingle, H.L. (2004). Fox, George (1624–1691), a founder of the Religious Society of Friends (Quakers). Oxford Dictionary of National Biography. Oxford University Press.
  http://www.oxforddnb.com/view/article/10031
• Pendle.net. The Religious Society of Friends: Quaker Movement.
  http://www.pendle.net/Attractions/quakers.htm
• Wikipedia. George Fox.
  http://en.wikipedia.org/wiki/George_Fox