Abstract
Bulletin de l'Académic R. de Belgium, January 5.—On the existence of a fourth species (B. borealis) of the genus Balæn-optera in the North Atlantic and Arctic Oceans, by M. Guldberg.—On the action of chlorine on combinations of sulphur, and on organic oxysulphurets, third communication, by M. W. Spring.—Researches on spermatogenesis in the Selacians (Scyllium catulus, Sc. canicula, Raja clavata), the salamander and mammals, by Prof. A. Swaen.—Essays on the political history of the last three centuries, by M. Van Praet.—Biographical notice of the painter Michael Van Cocxyen of Mechlin, by M. Castan.
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Scientific Serials . Nature 29, 565 (1884). https://doi.org/10.1038/029565a0
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DOI: https://doi.org/10.1038/029565a0