On the nuptial callosities of frogs and toads from the Lamarckian point of view/ J.T. Cunningham. Notes on the segmental excratory organs of Crustacea / H.Graham Cannon and S.M. Manton. On the relation between egg-weight and body-weight in birds / Julian S. Huxley. On the occurrence of intermediates in Aphis rumicis L. and their relation to the alate and apterous viviparous females / J. Davidson.
