88 Mineralogy. 



confluent kind, and accompanied with fymptoms confidcred 

 as fatal. 



" Any phvfician alfo, who {liall prove, by the greatefl; 

 number of fa£ls, that he has preferved whole families, by 

 friftion with oil, from the infedlion of this difeafe, will re- 

 ceive a like prize of tweKe ducats. We therefore expe6t to 

 be made better acquainted with the rules for employing this 

 remedy fo much extolled, and which Dr. Fothergill in Eng- 

 land, and other eminent phyficians, found ufeful in putrid 

 fevers." 



MINERALOGY. 



M. Chenevix has had under examination a fpecimen of 



manachanife from Botany Bay. It differs from the Cornifli 



in containing a white quartzy fand. It yielded on analyfis, 



Silex - ' - II 



Oxide of iron - 49 



Oxide of titanium - 40 



100 



It is difficult to obtain this metal reduced and pure ; but 

 by mixing the oxide of titanium with glafs of phofphorus 

 and charcoal, and then employing a flux of borax, a button 

 of phofphurct of titanium may be obtained. 



If the mineralogical riches of New Holland may be judged 

 of from the valuable produ>itions with which we have become 

 acquainted already, we may look forward to many interefting 

 difcoveries : already a metal is found to be a native of thofe 

 climates which has not long been known, and has been but 

 rarely met with in Europe. 



D'Andrade, in his travels through Sweden and Norway, 

 has added to the catalogue of minerals the following fub- 

 Itances, of which he intends publifhing a particular account: 

 Acanthiconej-fpodumene, fahlite, ichthyophthalme, coccolitCj 

 aphrizite, allochroite, indicolite, wernerite, petalite, chry- 

 folite, leapolite. 



Klaproth has completed the analyfes of the fluated alu- 

 mine called the chrjfolite of Greenland. It contains 

 23 '5 ofalumine 

 36-0 offoda 

 40*5 of fluoric acid and water. 



loo-o . 

 He confiders the difcovery offoda in flones as very remarka- 

 ble. It is the firft inftance of fuch a quantity of foda being 

 prefent in an inloluble fubilance. 



Vauquelin 



