Spathura Underwoodi.
Spawning of fishes.
Spear, used before dispersion of man.
Species, causes of the advancement of; distinctive characters of; or
races of man; sterility and fertility of, when crossed; supposed, of
man; gradation of; difficulty of defining; representative, of birds; of
birds, comparative differences between the sexes of distinct.
Spectrum femoratum, difference of colour in the sexes of.
Speech, connection between the brain and the faculty of; connection of
intonation with music.
Spel, of the black-cock.
Spencer, Herbert, on the influence of food on the size of the jaws; on
the dawn of intelligence; on the origin of the belief in spiritual
agencies; on the origin of the moral sense; on music.
Spengel, disagrees with explanation of man s hairlessness.
Sperm-whales, battles of male.
Sphingidae, coloration of the.
Sphinx, Humming-bird.
Sphinx, Mr. Bates on the caterpillar of a.
Sphinx moth, musky odour of.
Spiders, parental feeling in; male, more active than female; proportion
of the sexes in; secondary sexual characters of; courtship of male;
attracted by music; male, small size of.
Spilosoma menthastri, rejected by turkeys.
799