Note 34 — PRIMARY EPOCH.
Reading edition
Trans. Roy. Irish Acad., vol. xxiii., p. 556.
[35] “On the Red Rocks of England,” by A. C. Ramsay. Quart. Jour. Geol. Soc., vol. xxvii., p. 250.
[36] Quart. Jour. Geol. Soc., vol. iii., p. 159.
[37] “The Flora and Fauna of the Silurian Period,” by John T. Bigsby, M.A., F.G.S. 4to, 1868.
[38] Ibid, p. vi.
[39] “Siluria,” p. 148.
[40] “On the Red Rocks of England,” by A. C. Ramsay. Quart. Jour. Geol. Soc., vol. xxvii., p. 243.
[41] “On the Red Rocks of England,” by A. C. Ramsay. Quart. Jour. Geol. Soc., vol. xxvii., p. 247.
[42] For fuller details on this subject, see J. B. Jukes’ “Manual of Geology,” 3rd ed., p. 762. Also, R. Etheridge, Quart. Journ. Geol. Soc., vol. 23, p. 251.
[43] Quart. Jour. Geol. Soc., vol. xxii., p. 129.
[44] “Elements of Geology,” p. 480.
[45] Ibid, p. 479.
[46] Ibid, p. 479.
[47] Ibid, p. 483.
[48] “Introduction to Geology,” by Robert Bakewell, 5th ed., p. 179. 1838.
[49] For the opinions respecting the Stigmaria ficoides, see a Memoir on “The Formation of the Rocks in South Wales and South-Western England,” by Sir Henry T. De la Beche, F.R.S., in the “Memoirs of the Geological Survey of Great Britain,” vol. i., p. 149.
[50] See “Siluria,” p. 14. Philosophical Mag., 3rd series, vol. xix., p. 419.
[51] A. C. Ramsay, “On the Red Rocks of England.” Quart. Jour. Geol. Soc., vol. xxvii., p. 246.
[52] “Elements of Geology,” p. 456.
[53] “On the Red Rocks of England,” by A. C. Ramsay. Quart. Jour. Geol. Soc., vol. xxvii., p. 246.