Proceedings of the American Academy of Arts and Sciences, Volume 74

abdomen Acad Academy aedeagus Allotype Amer Anal plates antennae apparatus Banks basal Boston Brookline bulb capillary carboloy chap Charles chih Class coefficient Committee Comparative Zoology compression constant correction costal area curved dark brown determined distal dorsal view E. P. Kohler equation female FIGURE Fore wing Fund gas thermometer genus gradate veins Hemerobiidae Hemerobius Henry Hind wing Holotype hsien hyaline Ibid inner gradate insect July kg/cm² Killington lateral view length light brown liquid maculations manganin manometer margin material measurements median meeting meniscus mercury mesonotum method Micromus Museum of Comparative Nearctic Neuroptera Nordegg P. W. Bridgman piezometer piston plates of male posterior present pressure vessel Proc Professor pronotum propodeum pterostigma room temperature Rumford scutellum Section set-ups short arm Sisyridae species specimens steel Sympherobius Table tenth sternite tergite thermal tion transition tube ventral volume William Zoology