Walruses, 38.
Wasps, ground, 207; organizations, of digger, 260; 261.
Weismann, 71, 72; proved nuclei of egg contains, essential factors, 71, 145, 148.
Weisner, 143.
Whales, 40.
Wilson, 146.
Woehler, 29.
Wolf, Tasmanian, a true marsupial, 42.
Wolff, 70.
Wolves, 140.