THIS handy and very moderately priced laboratory guide will be useful in those courses of elementary instruction in zoology which aim at a fairly wide survey of the types of animal life without >going ...
THE Polish Institute for the Promotion of Science and Letters is publishing a “Handbook for Self-Education”(Poradnik dla Samoukow) under the general editorship of Prof. S. Michalski, and vol. JLO-(554 ...
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