New South African records of imperfectly known baetidae (ephem.) J. D. Agnew OriginalPaper Pages: 41 - 46
La respiration tissulaire des branchies des Téléostéens d'eau douce J. PequignotA. Serfaty OriginalPaper Pages: 47 - 54
Pelagic larvae of New England intertidal gastropods II. Anachis avara Rudolf S. ScheltemaAmelie H. Scheltema OriginalPaper Pages: 85 - 91
Quantitative proportions of glycogen in certain species of the tendipedidae (Diptera) larvae Bazyli Czeczuga OriginalPaper Pages: 92 - 110
Communities of algae in North Carolina streams and their seasonal relations L. A. WhitfordG. J. Schumacher OriginalPaper Pages: 133 - 196
A method of rearing Simulium ornatum var. nitidifrons (Diptera, Simulidae) in the laboratory R. E. HallJ. J. Harrod OriginalPaper Pages: 197 - 201
On the seasonal distribution of inshore Cladocera of the Volga water reservoirs N. N. Smirnov OriginalPaper Pages: 202 - 207