Author: Wesenberg-Lund, C., 1930.:
Title: Contributions to the biology of the Rotifera. Part II. The periodicity and sexual periods. [Mém. Acad. Sci. Lett. Danemark, Sect. Sci., 2(1).]
Description: Copenhagen 1930. 4to, 26.5cm. Pp. 230, many detailed figures on 15 plates, 4 folding letterpress tables, bibliography. Paperbound, plain new wrappers, uncut. Very good.

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