Walker, A., on intermarriage, i. 404;
on the inheritance of polydactylism, ii. [13].
Walker, D., advantage of change of soil to wheat, ii. [146].
Wallace, A. R., on a striped Javanese horse, i. 59;
on the conditions of life of feral animals, ii. [32];
artificial alteration of the plumage of birds, ii. [280];
on polymorphic butterflies, ii. [399]-[400];
on reversion, ii. [415];
on the limit of change, ii. [417].
Wallace, Dr., on the sterility of Sphingidæ hatched in autumn, ii. [158].