—— ——, varieties of, acclimatised in United States, [142].

Fuci, crossed, [258].

Fur, thicker in cold climates, [133].

Furze, [439].

G.

Galapagos Archipelago, birds of, [390].

——, productions of, [398], [400].

Galeopithecus, [181].

Game, increase of, checked by vermin, [68].

Gärtner on sterility of hybrids, [247], [255].