432 Scientiflc Intelligence, '^Mineralogy, 



half of tlio weight, hence this Peruvian sulphate must bo double the 

 value, as relates to weight, to that of England, while only half the 

 freight is paid in its transmission, from this fifty per cent, absence 

 of water in its composition. 



9. New Mineral Species^ named Anthosiderite. — Description, — 

 Colour ochre-brown, mixed with grey. Occurs massive, and in sco- 

 piform fibrous, distinct concretions, which are floriferously grouped 

 (hence, and on account of its ferruginous contents, the name Antho- 

 siderite) Is opaque or feebly translucent in splinters. 

 Hardness = 6, 5. Sp. Gr. = 3.0 — 



Constituent parts. — According to Mr Schnedermann, the follow- 

 ing results were obtained by chemical analysis : — 



Corresponding to the formula Fe Si^ -f H. 

 Geographic Situation, — Province of Minas, Geroes in Brazil, from 



whence it was received by Professor Plausmann Posggend. An. 



1841, N. 2. 



10. Occurrence of Vanadium in Slags from Copper Slate. — The 

 bituminfus marl-slate of geologists, a member of the magnesian lime- 

 stone series, frequently contains copper pyrites, and ores of copper, in 

 which state it is named copper slate. This copper slate is prepared 

 and smelted on account of the copper it contains in some districts in 

 Germany, as Mannsfeld, Sangerhausen in Thuringia, &c. The slags 

 of the copper slate of Mannsfeld and Sangerhausen, according to M. C. 

 Kersten of Freyberg, afford a portion of the metal named Vanadium, 

 thus intimating its presence as an ingredient in the copper-slate. 



ZOOLOGY. 



11. Comparative Anthropology. — M. Serres has lately presented 

 to the French Academy of Sciences, the inaugural dissertation of Pr 

 Pucheran, his nephew, entitled '* Anatomical Considerations con- 

 cerning the Forms of the Cranium in the difPeicnt llaccs of Mankind." 

 As the conclusion embodied in this dissertation contains a summary 

 of the instructions given at the Museum of Natural History by M. 

 Serres, he regards them sufficiently interesting to excite the attention 

 of the Academy. Of these results, some relate to the difi^erent forms 

 belonging to the cranium of the Mongolian, Malayan, and Ethiopic 

 races, considered both generally and with a special relation to the dif- 

 ferent regions of which it is composed ; whilst others have regard to 



