Abstract
Bulletin de la Société des Naturalistes de Moscou, 1887, No. 4 —On organic compounds in their relations to haloid salts of aluminium, by G. Gustafson (in German). In this second part the following conclusions are arrived at, The organic compounds undergo deep modifications in presence of the above salts. The reactions of addition are the chief ones, but the most interesting are those undergone by the aromatic hydrocarbons under the influence of chloride and bromide of aluminium; although most unstable, and therefore sometimes viewed as mere molecular compounds, they show a deep modification of the hydrocarbons from which they issue. They explain also the rôle of salts in organisms.—On the regeneration of lost organs in spiders, by V. Wagner (in French). This is the result of a double simultaneous process; the atrophy of the tissues belonging to the lost member, and the growth of the new one in the atrophied remnants of the old member. Both processes are described and illustrated.—Short, notes on some (eighteen) Russian species of the genus Blaps, by E. Ballion (in German).—On two new Branchiopods from the Tratiscaspian region (Apus haeckelii, n. sp., and Artemia asiatica, n. sp.), by Dr. A. Walter.—Enumeration of the vascular plants of the Caucasus, by M. Smirnow (continued). The Ranunculaceæ are described; they contain ninety-eight species, belonging to seventeen genera, and out of them thirty-seven belong to the genus Ranunculus, and thirteen to that of Delphinium. The Myosurus, Garidella, Caltha, and Actæa number only one species each. The total number of Caucasian Phanerogams, according to Ledebour's “Flora Rossica,” is 2965; now it must be estimated at about.4000 species. Out of the ninety-eight species of Ranunculaceæ described, forty belong exclusively to the flora of the East, while-fifty-two are met with in South Russia, thirty in the Crimea, thirty-three in the Altai, twenty-four around Lake Baikal, and only twenty-one in the Urals, and eighteen in North Russia. Very interesting remarks follow as to the distribution of the Ranun-culaceæ in separate parts of the Caucasus.
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Scientific Serials . Nature 38, 139–140 (1888). https://doi.org/10.1038/038139b0
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DOI: https://doi.org/10.1038/038139b0