Finlayson, on the Cochin Chinese.
Fire, use of.
Fischer, on the pugnacity of the male of Lethrus cephalotes.
Fischer, F. Von, on display of brightly coloured parts by monkeys in courtship.
Fish, eagerness of male; proportion of the sexes in; sounds produced by.
Fishes, kidneys of, represented by Corpora Wolffiana in the human embryo; male, hatching ova in their mouths; receptacles for ova possessed by; relative size of the sexes in; fresh-water, of the tropics; protective resemblances in; change of colour in; nest-building; spawning of; sounds produced by; continued growth of.
Flamingo, age of mature plumage.
Flexor pollicis longus, similar variation of, in man.
Flies, humming of.
Flint tools.