------ shells, [381], [394], [413], [417], [421], [424].
------ sugar-loaves, [323].
------ vegetables, [51], [61], [86].
------ wood, examination of, [65].
------ zoology, [216].
Fossiliferous rocks, order of the, [21].
Fossils, definition of, [15], [37].
------- nature of, [37].
------- once thought to be Lusus Naturæ, [2].