372 



SCIENCE. 



[N. S. Vol. III. No. 62. 



driodic Adds : By J. H. Kastle and J. H. Bul- 

 lock. The use of naphthalene and bromine is 

 recommended for making hydrobromic acid, 

 and a mixture of resin, iodine and sand for 

 hydriodic acid. 



Turmerol: By C. Loring Jackson and W. 

 H. Wabeen. Turmerol, prepared from the 

 crude product by distilling in vacuo, when 

 treated wjth nitric acids yields paratoluic acid. 

 It is considered to be an alcohol containing a 

 benzene ring with methyl and carbon side 

 chains in the para position. 



Bromine deviratives of Besorcine : By C. IjOR- 

 ING Jackson and F. L. Dunlap. It is not pos- 

 sible to replace two of the bromine atoms in 

 C6HBr3(OC2H5), by hydrogen, unless the hy- 

 drogen atom is first replaced by the nitro group. 

 The introduction of a hydroxyl group also 

 facilitates the replacement of the bromine. The 

 ethoxy groups do not weaken the affinity of the 

 bromine as the free tribromresorcine is easily 

 decomposed. 



Trinitrophenyhnalonic eater: By C. Loeing 

 Jackson and C. A. Soch. The method of prep- 

 aration, reactions and derivatives of picrylma- 

 lonic ester, which Dittrich was unable to ob- 

 tain, are given in this paper. 



The artificial production of Asphalt from Pe- 

 troleum: By C. F. MABEEYand J. H. Dyerley. 

 After removing the oils used for illuminating 

 purposes, the residue is distilled slowly while 

 air is drawn through. Products of diiferent 

 specific gravity are separated and used for 

 various purposes in which asphalt has been 

 used. 



On the Action of Phosphorus Pentachloride on 

 Parasulphaminehenzoic Acid : By Ira Remsen, 

 R. N. Hartman and A. M. Muchenpuss. The 

 product formed by the action of phosphorus 

 pentachloride on parasulphaminebenzoic acid, 

 when heated, decomposes in two stages, and 

 the final product contains the nitrogen group in 

 combination with the carbon atom instead of 

 with the sulphone group as at first. Some light 

 is thrown on the nature of this change by these 

 investigations. 



This number also contains a review of the 

 work on Chemical Technology by Groves and 

 Thorp. Vol. II. 



J. Elliott Gilpin. 



psyche, march. 

 The number is mostly occupied by the Presi- 

 dential address of Clarence M. Weed on the 

 ' Hibernation of Aphides,' summarizing previous 

 knowledge. J. W. Folsom gives an account of 

 the oviposition of Thanaos juvenalis, and a sup- 

 plement is occupied by descriptions of insects, 

 mostly New Mexican, by T. D. A. Cockerell 

 and C. F. Baker. 



SOCIETIES AND ACADEMIES. 

 THE NEW YORK ACADEMY OE SCIENCES. 



At the meeting of the Geological Section of 

 the New York Academy of Sciences, held on 

 February 17, 1896, the following papers were 

 presented: 



The first paper was read by Mr. L. McI. 

 Luqueer, entitled ' Notes on Recent Accessions 

 of Interesting Minerals,' with exhibition of 

 specimens. Mr. Luqueer described in detail the 

 minerals that he had recently discovered at the 

 feldspar quarries in the northeastern part of 

 Westchester county. They include uraninite, 

 autunite, uranophane, washingtonite and the 

 common minerals of pegmatite veins. He 

 showed that the veins occurred in close asso- 

 ciation with an area of augen-gneiss, regarded 

 as intrustive and now being studied by himself 

 and Mr. Heinrich Ries. 



The second paper was by J. F. Kemp, en- 

 titled ' The Cripple Creek Gold Mining District 

 of Colorado.' The paper was illustrated by 

 about thirty lantern views, most of which were 

 taken by the speaker during the past summer, 

 and by an extensive series of rocks and ores. 

 After a brief historical review the region was 

 described in detail, without, however, intro- 

 ducing anything essential that is not already 

 contained in the Cripple Creek atlas folio of 

 the United States Geological Survey, which 

 was prepared by Messrs. Cross and Penrose. " 

 J. F. Kemp, 

 Secretary. 



THE TOEEEY BOTANICAL CLUB. 



The regular meeting of the Torrey Botanical 

 Club was held on Tuesday evening, February 

 11th. Two new members were elected. Mr. 

 A. A. Heller contributed an interesting paper 



