Fringilla ciris, ii. [154].
Fringilla spinus, ii. [154].
Frizzled fowls, i. 230;
horses, i. 54.
Frog, polydactylism in the, ii. [14].
Fruit, seedless, ii. [168].
Fruit-trees, varieties of, occurring wild, i. 310.
Fry, Mr., on fertile hybrid cats, i. 44;
on feral fowls in Ascension, i. 238.
Fuchsias, origin of, i. 364;