Volume 51 - Part 4
: June 1954
(Records)
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On a new Evolutionary Phenomenon: the Sharp Increase of Intraspecific Variation in minimum Populations, as Evidenced by the Desert Locust
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Siluroid Fishes of India, Burma and Ceylon---Fishes of the Genus Mystus Scopoli (14)
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On some Variations in the Nematode Genera Porrocaecum and Echinocephalus
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