1. A revision of the rotatorian genera Brachionus and Platyias, with descriptions of one new species and two new varieties;Ahlstrom E. H.;Bull. Am. Mus. nat. Hist.,1940
2. A Study of Chitin Secretion in Daphnia Magna
3. The occurrence, life cycle, and pathogenicity of Echinuria uncinata (Rudolphi, 1819) Soloviev, 1912 (Spirurida, Nematoda) in waterfowl at Delta, Manitoba
4. Ueber eine neue Species der Gattung Ichthyotaenia und ihre Verbreitungsweise;Barbieri C.;Zentbl. Bakt. ParasitKde,1909
5. Studies on the plankton in the lake of Fredriksborg Castle;Berg K.;K. danske Vidensk. Selsk. Skr.,1929