[54] See "Proceedings of the Royal Institution," vol. v. part iv. p. 278: Report of a Lecture delivered February 7, 1868. Also "Quarterly Journal of the Geological Society," February 1870: "Contributions to the Anatomy and Taxonomy of the Dinosauria."
[55] "Proceedings of Geological Society," November 1869, p. 38.
[56] The archeopteryx of the oolite has the true carinate shoulder structure.
[57] "Proceedings of the Royal Institution," vol. v. p. 279.
[58] This remark is made without prejudice to possible affinities in the direction of the Ascidians,—an affinity which, if real, would be irrelevant to the question here discussed.
[59] "Lectures on the Comp. Anat. of the Invertebrate Animals," 2nd edit. 1855, p. 619; and Todd's "Cyclopædia of Anatomy," vol. i. p. 554.
[60] See "Habit and Intelligence," vol. i. p. 321.
[61] A view recently propounded by Kowalewsky.
[62] "Natural Selection," p. 167.
[63] "Natural Selection," p. 173.