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Wasps, duration of life of male and female, [18], [53];
loss of embryonic limbs in development of larva of, [89].
Westphal, on epilepsy in guinea-pigs, [314].
Whales, length of life of, [6]; adaptation in, [261].
White mice, experiments in the transmission of mutilations on, [431].
Will, on origin of ova, [222].
Wolff, on theory of epigenesis, [316].
Zacharias, on the inheritance of mutilations, [426].