Anderson, R.V. and W.S. Vinikour
Distribution of Hysdropsyche and Cheumatopsyche (Tricioptera: Hydropsychidae) in Relationship to the Thickness of an Algal Mat
Anderson, R.V. and W.S. Vinikour
Distribution of Hysdropsyche and Cheumatopsyche (Tricioptera: Hydropsychidae) in Relationship to the Thickness of an Algal Mat
Note of a New Indicator in Water Analysis Authors: Greenfield, R.E. and Edward Bartow
The Intercision of Pike River, Near Kenosha, Wisconsin Author: Ball, J.R.
Notes on the Life-Histroy of a Cranefly of the Genus Geranomyia Haliday (Tipulidae, Diptera) Authors: Alexander, C.P. and J.R. Malloch
Note of a New Indicator in Water Analysis Authors: Greenfield, R.E. and Edward Bartow
The Intercision of Pike River, Near Kenosha, Wisconsin Author: Ball, J.R.