Notices of Memoirs — Scientific Journals. 79 



show no additional workmanship beyond the ordinary fracture of 

 the flint, and bear no evidence of use." 



We would ask, before accej^ting Mr. Whitley's interpretation of 

 these flakes, may they not be the refuse-chips left from the formation 

 of flint implements or weapons ? 



3. The Comptes Eendus, tome lxvii., contains an account of the 

 discovery of a new locality for Adamite (Arsenate of Zinc) in France. 



This mineral, hitherto only observed in small quantities on some 

 specimens of silver ores from Chaiiarcillo, Copiapo, Chili, has been 

 discovered by Messrs. Gory and Boutigny in the refuse heaps of a 

 copper mine situated at Cape Garonne, near the town of Hyeres, 

 Department du Var, France. In a qualitative examination M. Gory 

 found arsenic, zinc, and cobalt. At the request of the finders 

 M. Damour undertook the analysis of this interesting mineral. The 

 following are its principal characters. The crystals are lenticular, 

 curiously grouped and macled, sometimes coated and interpenetrated 

 with minute acicular crystals of olivenite. Colour grey, with a 

 slight rose tint. Some specimens show a cloudy carmine-red, 

 somewhat similar to that of some varieties of erythrine. Hardness, 

 a little above that of calcite. Exhibits two cleavages, with angle of 

 107°, as observed by M. Des Cloiseaux in the Chaiiarcillo mineral. 

 Specific gravity, 4-352. M. Friedel obtained 4:-338 for that from 

 Chili. Heated in a tube disengages a little water neutral to test 

 papers, and takes a slight bluish tint. Dissolves completely in 

 acids, only partially soluble in caustic potash. B. B. on charcoal, 

 melts into a blackish scoria, giving off white fumes with an arsenical 

 odour. On cooling, leaves a white ring around the scoria, tinted 

 with blue upon the edges. When fused with borax, or microcosmic 

 salt, this gives the characteristic blue colour of cobalt. Deducting 

 the cupric and cobaltic arsenates, regarded by Damour as accidental 

 admixtures, the numbers obtained approach near to those which 



indicate the formula, Zn^ As. H. Isomorphous with olivenite, as 

 observed by Des Cloiseaux in the Chili mineral. The Adamite of 

 Cape Garonne is found in thin layers lining the fissures of a quartz 

 rock, which is traversed by veins of sulphide and carbonate of 

 copper, and is situated on the side of a hill more than 900 feet 

 high, composed of Keuper Sandstone A small quantity only of 

 this mineral has yet been obtained. — T. D. 



E-ZEATXIE^WS. 



HEALTH AND GEOLOGY COMBINED. 

 I. Public Health. Tenth Eepokt of the Medical Officer of 

 THE Privy Council. With Appendix. 1867. Published 1868. 



OF late some little attention has been turned to the connection be- 

 tween Geology and the prevalence of certain diseases. The fol- 

 lowing reports have reference to this subject. 



JDr, Buchanan reports on an Outbreak of Typlioid Fever at Guild- 



