108 Scientific Intelligence. 



presence of water in alcohol. The dry salt in combining with the water 

 of the alcohol recovers its blue color, and when this color ceases to be 

 produced, water is no longer present. 



To obtain "anhydrous alcohol, strong alcohol is to be saturated with 

 chlorid of calcium, and the portion first distilled from it is to be treated 

 with the dry sulphate until the blue color ceases to appear. These ex- 

 periments should be performed in closed vessels, to prevent the inter- 

 ference of atmospheric moisture. G. C. S. 



12. On the Compounds of Phosphoric Acid with Aniline ; by Ed. 

 C. Nicholson, (Phil. Mag., Jan., 1847.) — The facility with which the 

 salts of aniline crystallize, led to the attempt to investigate its several 

 phosphates, which might be supposed analogous to the phosphates 

 of ammonia. Two tribasic phosphates were obtained, one being 



2(HO,C 12 H 7 N)HO,P0 5 , the other (HO,C 12 H 7 N,) 2HO,PO,,cor- 

 responding to the ammonia salts, and like them anhydrous. The at- 

 tempt to form the salt with three equivalents of base or one containing 

 soda (analogous to microcosmic salt) was unsuccessful. Two pyrophos- 

 phates were formed at the same time, acid and neutral ; the latter could 

 not be isolated ; the former (HO, C 12 H 7 N,) HO, P0 5 corresponds to 

 acid phyrophosphate of soda, but has no analogue in the ammonia 



series. 



The metaphosphate was formed similar to the soda salt ; the ammo- 

 nia salt exists only in solution. 



The conclusion is a natural one, that organic bases form series of 

 salts with poly basic acids resembling those of the metallic oxyds. 



G. C. S. 



13. On the relations of Glycocoll and Ale ar gene ; by Mr. Thomas 



S. Hunt. — We have received an interesting paper from Mr. Hunt on 

 the relations of these two bodies, which we defer to our next number. 

 He points out the fact that the formulas of the two bodies are the same, 

 excepting the substitution of As for N, and instances some of the ho- 

 mologous compounds as follows : 



Glycocoll, C 4 H 5 NO 



Argentic - C 4 (H 4 Ag)N0 4 _ m% -.- m - 



Hydrochloric " C 4 H 5 N0 4 , HCI Hydrochloric " C 4 H 5 As0 4 , HCI 



Alcargene, C 4 H 5 AsO 

 Argentic " C 4 (H 4 Ag) As0 4 



II. Mineralogy and Geology 



1 



. Hauerife, a New Mineral Species; by W. Haidinger, (Poggen- 

 dorfTs Annalen, Vol. Ixx, p. 148.)— Hauerite belongs to Mohs's order 

 of blende, and resembles very much several true brown zinc-blendes. 

 Its crystals belong to the tessular system : they are partly perfect octa- 

 hedrons, partly combinations of this form with faces of the hexahedron 

 and other modifying planes. 



One of the two crystals submitted to my examination by Mr. Bergho- 

 fer, is a perfect and distinct octahedron, whose axis measures three 

 quarters of an inch. The mineral cleaves with extreme facility p ar ' 

 allel to the faces of the cube. Its lustre is between metallic adaman- 

 tine and imperfectly metallic ; the color ranges between dark reddish- 

 brown and brownish-black, and in the thinnest films obtained by cleav- 





