Aronson, Lester R. (Lester Ralph), 1911-2005-10-062005-10-061943http://hdl.handle.net/2246/37946 p. : ill. ; 24 cm.Includes bibliographical references (p. 6)."The oviposition behavior of the green frog, Rana clamitans, and the bull frog, Rana catesbeiana, induced by injections of homoplastic anterior pituitaries and witnessed in a laboratory habitat, is described. A possible course of evolution from the plinth type of spawning to the surface film type is discussed"--P. 6.926260 bytesapplication/pdfen-USQL1 .A436 no.1224, 1943Green frog -- Behavior.Bullfrog -- Behavior.Green frog -- Reproduction.Bullfrog -- Reproduction.Sexual behavior in animals.Frogs -- Behavior.Frogs -- Reproduction.Anura -- Behavior.Anura -- Reproduction.Amphibians -- New York (State)text