Variations, necessary, their constant presence, [26] et seq., [31] et seq., [61];
generally, [3], [11]-[14], [61], [71] et seq.
Waagen, [72].
Wallace, [11], [25], [29], [51], [66], [81].
Weldon, [36].
Whale, hind leg of, [42], [56], [80].
Whitman, C. O., [53].
Wiesner, [40].