MINERALOGY. 225 



Brezina, Dr. A. Anthophyllit von Herman nschlag. Min. Mitt. 



Heft iii. p. 247. 

 Analysis of a fibrous anthophyllite from Hcrmannschlag, in Moravia. 



. Guaiinit. Min. Mitt. Heft iv. pp. 285, 286, with woodcut. 



Calls attention to Prof. Guiscardi's original MS. (1856), in which he 

 referred the crystals of Guarinite to the rhombic, not tetragonal, system. 

 These early observations have been confirmed by Yon Lang's optical 

 researches. Guiscai'di's measurements are given, and compared with 

 those of Yon Lang. F. W. E. 



Broadhead, G. C. Note on Pickeringite from Missouri. Amer. 

 Journ. ser. 3, vol. vii. p. 520. 



The Pickeringite occurs in efflorescences on sandstone of the Lower 

 Coal Measures in Barton Co. An analysis by Mr. R. Chauvenet gives 

 the composition — sulphuric acid 33-77, alumina 16*58, magnesia 2-92, 

 water 44-64, =9r91. G. A. L. 



BuRKART, Dr. Ueber das Yorkommen verschiedener Tellur- und 



Wismuth-Minerale in den Yercinigten Staaten von Nordamerika. 



[Minerals of Tellurium and Bismuth in the United States.] N". 



Jahrb. Heft i. pp. 29-32. 



Calls attention to the occurrence of these minerals at the Sugar-loaf 



Mountain and elsewhere in Colorado. Gives localities of bismuth-ores 



in Mexico. Notices a Mexican mineral regarded by Del CastiUo as a 



new species (Tapalpita). llammelsbcrg's analysis leads to the formula 



Ag^SBi^Te^; but it is uncertain whether it is a definite compound or. a 



mixture. F. W. 11. 



. Ueber neuo mexicanischo Fundorte ciniger MineraUen. 



[Mexican localities.] N. Jahrb. Heft vi. pp. 587-509. 

 Notices the occurrence of precious opal, native arsenic, and native 

 platinum at some new localities in Mexico. 



. [Silver, borax.] N. Jahrb. Heft vii. pp. 715-720. 



Two letters calling attention to Prof. Church's analyses of native 

 silver [p. 226], and to the occurrence of borax, in California and 

 Nevada. F. AY. 11. 



Cabell, J. A. Analysis of Allanite, from a New Yirginia locality. 

 Chem. News, vol. xxx. no. 773, p. 141. 



Specimens from Amherst County yielded: — silica 31*23, alumina 

 16-45, ferric oxide 3*49, ferrous oxide 13-67, cerous oxide 11*24, 

 lanthanum and didymium oxides 9*9, yttria 1-65, glucina 0*24, limo 

 8-69, magnesia 0-22, and water 2-28, =99-06. F. W. R. 



Carnot, Ad. Bur la decouverto d'un gisemcnt do Bismuth en 

 France. [Discoverj' of Bismuth in France.] Compt. Rend. t. Ixxviii. 

 pp. 171-174 ; and Ann. Chim. Phys. ser. 5, t. iii. pp. 454-470, 

 with the addition *'• ct sur quelques mincraux trouvcs dans co 

 gisemcnt." 



Native bismuth and sulphido and oxide of bismuth were found for 

 1874. Q 



