Wagner, [256] n.

Wallich, on Protozoa, [45]

Walteria, [199], [202];

W. flemmingi, [206];

W. leuckarti, [206]

Wasielewski, on Sporozoa, [94] n.

Water in protoplasm, [12]

Water-Fleas, Vorticellidae found on, [158];

rheotaxy of (small Crustacea), [21]

Water-vascular system, [428];