Gray, Dr. Asa, on trees of United States, [100].
——, on naturalised plants in the United States, [115].
——, on rarity of intermediate varieties, [176].
——, on Alpine plants, [365].
——, Dr. J. E., on striped mule, [165].
Grebe, [185].
Groups, aberrant, [429].
Grouse, colours of, [84].
——, red, a doubtful species, [49].
Growth, compensation of, [147].