76 Scientific Intelligence. 



Si0 2 MgO CaO Fe 2 3 MnO K 2 H 2 



58-02 27-99 5*04 1-28 2-88 089 3*13=99*23 



The formula is RSi0 3 , or that of anthophyllite, from which it is 

 stated to differ somewhat in optical characters (y — a= 0*0036). — 

 Zeitschr. Kryst., xxx, 84. 



Cedarite is a fossil resin, resembling amber, from the alluvium 

 of the Saskatchewan river, Canada. Analysis gave: C 78-15, 

 H 9-89, S 0-31, O 11-20, ash 0-45 = 100. Described by R. Klebs, 

 Jahrb. Min., ii, 212 ref., 1898. 



Batavite, described by Weinschenk, is a decomposition pro- 

 duct occurring with the graphite deposits near Passau, Bavaria. 

 It occurs in white pearly scales with a specific gravity of 2*183. 

 Analysis gave : Si0 2 42-33, A1 2 3 16*35, MgO 28*17, H 2 13*19 = 

 100 04. For this the composition suggested is H 8 Mg 4 Al 2 Si 4 19 . — 

 Zeitschr. Kryst., xxviii, 160. 



Grtjnlingite, described by Muthmann and Schroder, is a 

 sulpho-telluride of bismuth, related to tetradymite, from Cumber- 

 land, England. It was earlier investigated by Rammelsberg, 

 but the authors have obtained on analysis a composition agreeing 

 with the formula Bi 4 S 3 Te or Bi(S, Te). It appears in cleavable 

 masses with metallic luster and gray color; the specific gravity 

 is 7'321. Named after Dr. F. Grtinling of Munich. — Ibid., xxix, 

 144. 



Planoferrite, described by L. Darapsky, is a hydrated ferric 

 sulphate from the Lautaro copper mine in Atacama. It occurs 

 in tabular crystals which are colorless or lemon-yellow. An 

 analysis gave: S0 3 15-57, Fe a 3 31*20, H 2 51*82, insol. 1*41 = 

 100. This corresponds to Fe 3 3 . S0 3 . 15 Hft.—Ibid., xxix, 213. 



III. Botany and Zoology. 



1. The Poisonous effect exerted on living plants by Phenols. 

 (Botan. Centralblatt, Nov. 15, 1898.)— Professor R. H. True 

 has extended his fruitful investigations respecting the action of 

 toxic substances far beyond the boundaries which he originally 

 marked out. With efficient collaborators, he studied two years 

 ago the effects of salts, acids, and bases, on one of the Legumi- 

 nosse, and had the satisfaction of having the results substantially 

 confirmed by other experimenters, and the suggestions carried 

 into a wider field. With Mr. Hunkel, he returns to the task, and 

 obtains results which appear to confirm the belief that the whole 

 subject of Toxicology is to receive abundant light from the study 

 of plants. It is well known that the meagre information regard- 

 ing the action of active remedial agents on plants, embodied in 

 the Dispensatories, is unsatisfactory, but it certainly indicates a 

 desire on the part of the commentators to get what little light 

 glimmers through the obscure experimentation. Now, of late 

 years, the whole subject has been placed on a different basis, and 

 the work done upon this basis is creditable alike in its suggestion 

 .and its execution. It is not yet time to summarize the details or 



