[378] Jenaische Zeitschrift, ix., pp. 402-508, 1875.
[379] Loc. cit., ix., p. 409.
[380] Untersuchungen zur vergl. Anatomie d. Wirbelthiere, Leipzig, i., 1864; ii., 1865; and iii., 1872.
[381] "U. d. Biologie in Jena während des 19 Jahrhunderts," Jenaische Zeitschrift, xxxix., pp. 713-26, 1905.
[382] Grundriss der vergl. Anatomie, 1874, 2nd ed., 1878. Trans. by F. Jeffrey Bell, revised by E. Ray Lankester, as Elements of Comparative Anatomy, London, 1878.
[383] "This theory (evolution) shows that what was formerly called 'structural plan' or 'type' is the sum of the dispositions (Einrichtungen) of the animal organisation which are perpetuated by heredity, while it explains the modifications of these dispositions as adaptive states. Heredity and adaptation are thus the two important factors through which both the unity and the variety of organisation can be understood" (Grundzüge, p. 19).
[384] History of Creation, i., pp. 241-2.
[385] "On the use of the term Homology in Modern Zoology, and the distinction between Homogenetic and Homoplastic agreements," Ann. Mag. Nat. Hist. (4), vi., pp. 35-43, 1870.