on interbreeding, ii. [116];

variability dependent on reproduction, ii. [250];

period of action of variability, ii. [260];

inheritance of deafness in cats, ii. [329];

complexion and constitution, ii. [335].

Lucaze-Duthiers, structure and growth of galls, ii. [282]-[284].

Luizet, grafting of a peach-almond on a peach, i. 338.

Lütke, cats of the Caroline Archipelago, i. 47.

Luxuriance, of vegetative organs, a cause of sterility in plants, ii. [168]-[171].

Lyonnet, on the scission of Nais, ii. [358].