Pleuroxus (Chydoridae): Field observations and growth N. N. SmirnovН. Н. Смирнов OriginalPaper 01 June 1964 Pages: 305 - 320
Evidence of a spring rise in metabolic rate in the burrowing mayfly ephemera simulans Walker C. H. Eriksen OriginalPaper 01 June 1964 Pages: 506 - 510
A new variety of Nitzschia sinuata (W. Sm.) Grun. from North Wales, Great Britain S. Biswas OriginalPaper 01 June 1964 Pages: 511 - 514
A bio-ecologial study of Nuggikari lake in Dharwar, Mysore State, South India Indira Jayangoudar OriginalPaper 01 June 1964 Pages: 515 - 532
Some factors affecting the respiration of some aquatic plants M. OwensP. J. Maris OriginalPaper 01 June 1964 Pages: 533 - 543
Bostrychia hamana-tokidaï post synoptische studie Erika Post OriginalPaper 01 June 1964 Pages: 544 - 560