Note 228 — Chapter XX · THE RELATIONS BETWEEN LAMARCKISM AND DARWINISM; NEOLAMARCKISM
Reading edition
“The Influence of Physical Conditions in the Genesis of Species,” Radical Review, i., May, 1877. See also J. A. Allen in Bull. Mus. Comp. Zoöl. ii., 1871; also R. Ridgway, American Journal of Science, December, 1872, January, 1873.