Water Beetles in relation to Pondfish Culture, with life histories of those found in fishponds at Fairport, Iowa

Pp. 231-345; 140 text-figures (line-drawings, halftones and black-and-white photos – some are full page).  Later full black cloth, lettered in gilt on the spine, sm 4to.  United States Bureau of Fisheries, 1923-24, Document no. 953.  Contribution from the U. S. Fisheries Biological Station, Fairport, Iowa.  This monograph focuses on the life histories, habits, and the economic importance of American Water Beetles.  More than 500 species or Water Beetles are found in the ponds, streams and lakes of North America.  No ownership marks and no signs of use.