100176. Edmondson, W. T.   The rate of egge production by rotifers and copepods in natural populations as controlled by food and temperature.   Stuttgart, Germany, 1964, Verhandlungen des Internationalen Verein Limnologie, Volume 15 : pages 673-675 with 2 figures.   Softbound, self-wrap, previous owners name, very good condition.    $3.00

7895. Eriksen, B. G.   Rotifers from Two Tarns in Southern Finland, with a Descritpion of a New Species, and a List of Rotifers Previously Found in Finland.   Helsingfors, 1969, Acta Zoologica Fennica, 125 : 1-36, 13 figures.   Printed wraps, minor edge wear and bumping, text in very good condition.   Rarely seen, high quality, technical publication, in english.   $11.00

69029. The Ecological Society of America.   Ecological Monographs : Contains articles on Endemism and Speciation in the California Flora, Studies in Subarctic and Artic Bioclimatology, Reproductive Rate of Planktonic Rotifers Relative to Food and Temperature, and Old-field Broomsedge.   Duke University Press, Durham, North Carolina, 1965, Ecological Monographs, Volume 35, Number 1 : 137 pages with illustrations.   Printed wraps, minor signs of age, text in very good condition.    $5.00