[8] "Principles," p. 50, 8th Ed.
[9] "History of the Inductive Sciences," vol. ii., p. 521.
[10] "Founders of Geology," pp. 237-8.
[11] "History," p. 112.
[12] Zittel, "History," p. 110. It should be noted that all these rocks in England thus examined by Smith make up only a small fraction of the total geological series—largely what we now call the Jurassic and Cretaceous rocks.
[13] The onion-coat hypothesis, which is the only other alternative, modern science professes to have abandoned.
[14] When the text-books speak of ten or twelve miles thickness of the fossiliferous rocks, the reader should remember how the rocks have to be patched up together from here and there to make this incredible thickness, as only a small fraction of such a thickness exists in any one place.
[15] "Manual," p. 399, Fourth Ed.
[16] "Manual," p. 408.
[17] "Manual of Historical Geol.," p. 74.