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Partridges, living in triplets; spring coveys of male; distinguishing persons. Parus coeruleus. Passer, sexes and young of. Passer brachydactylus. Passer domesticus. Passer montanus. Patagonians, self-sacrifice by; marriages of. Patterson, Mr., on the Agrionidae. Patteson, Bishop, decrease of Melanesians. Paulistas of Brazil. Pavo cristatus. Pavo muticus, possession of spurs by the female.

Westwood, J.O., on the classification of the Hymenoptera; on the Culicidae and Tabanidae; on a Hymenopterous parasite with a sedentary male; on the proportions of the sexes in Lucanus cervus and Siagonium; on the absence of ocelli in female Mutillidae; on the jaws of Ammophila; on the copulation of insects of distinct species; on the male of Crabro cribrarius; on the pugnacity of the male Tipulae; on the stridulation of Pirates stridulus; on the Cicadae; on the stridulating organs of the cricket; on Ephippiger vitium; on Pneumora; on the pugnacity of the Mantides; on Platyblemnus; on difference in the sexes of the Agrionidae; on the pugnacity of the males of a species of Tenthredinae; on the pugnacity of the male stag-beetle; on Bledius taurus and Siagonium; on lamellicorn beetles; on the coloration of Lithosia.

Age, in relation to the transmission of characters in birds; variation in accordance with, in birds. Agelaeus phoeniceus. Ageronia feronia, noise produced by. Agrion, dimorphism in. Agrion Ramburii, sexes of. Agrionidae, difference in the sexes of. Agrotis exclamationis. Ague, tertian, dog suffering from. Ainos, hairiness of the. Aitchison, Mr., on sheep. Aithurus polytmus, young of.