Vertebrates, reproductive cells of, [74].

Vestigial organs, persistence of, [91].

Vines, Prof. S., criticism on Weismann, [14], [75], [90], [99], [152], [178];

on the Basidiomycetes, [90].

Vries, De, theory of heredity, [2];

on germ-plasm, [54];

on the chromatophores of Algae, [83], [111];

on Xenia, [144].

W.

Weismann, Prof. August., theory of germ-plasm, [5], [17], [173] et seq.;