These old flying animals sleep through geological ages, not without honour, for the study of their story has illuminated the mode of origin of animals which survive them, and in cleaving the rocks to display their bones we have opened a new page of the book of life.

APPENDIX

The best public collections of Ornithosaurian remains in England are in the British Museum (Natural History); Museum of Practical Geology, Royal College of Surgeons; the University Museum, Oxford; Geological Museum, Cambridge; and the Museum of the Philosophical Society at York.

Detailed descriptions and original figures of the princ.i.p.al specimens mentioned or referred to may be found in the following writings:--

H. v. Meyer, _Reptilien aus dem Lithograph_. _Schiefer_. 1859. Folio.

v. Quenstedt, _Pterodactylus suevicus_. 1855. 4to.

Goldfuss, _Nova Acta Leopold_. XV.

v. Munster, _Nova Acta Leopold_. XV.

A. Wagner, _Abhandl. Bayerischen Akad._, vi., viii.

Cuvier, _Annales du Museum_, xiii. 1809.

" _Oss.e.m.e.ns fossiles_, v. 1824.

Buckland, _Geol. Trans._, ser. 2, iii.

R. Owen, _Palaeontographical Society_. 1851, 1859, 1860, 1870, 1874.

K. v. Zittel, _Palaeontographica_, xxix. 1882.

T. C. Winkler, _Mus. Teyler Archives_. 1874, 1883.

Oscar Fraas, _Palaeontographica_, xxv. 1878.

Anton Fritsch, _Bohm. Gesell. Sitzber_. 1881.

R. Lydekker, _Catalogue of Fossil Reptilia in British Museum_ I. 1888.

O. C. Marsh, _Amer. Jour. Science_. 1882, 1884.

S. W. Williston, _Kansas University Quarterly_. 1893, 1896.

E. T. Newton, _Phil. Trans. Royal Soc._ 1888, 1894.

H. G. Seeley, _Ornithosauria_. 8vo. 1870.

" _Annals and Mag. Natural Hist._ 1870, 1871, 1890, 1891.

" _Linn. Society_. 1874, 1875.

" _Geol. Mag._ 1881.

Felix Pleininger, _Palaeontographica_. 1894, 1901.