28a Medical Society of Bourdcaux, &'c. 



to the Council of Mines by baron De Molt. Vav^qnelin 

 found in it, as Klaprolh had done, an union of fulphate of 

 lime wiih muriate of foda ; which civts to the former the 

 property of cryftallizing in the cubical form : but he re- 

 marked likewife, that lOO grains of this fubftance, broken 

 into fmall fragments, and expofed to the moll violent heat 

 for half an hour, loll none of their weight: they only be- 

 came foniewhat opake. 



It is very Angular to fee a crvnallized fait entirely deprived 

 of its water of crvftallization, though conipofed of two other 

 falls which generally contain a prcttv large quantity of it. 



C. Gillet read a note on the emeralds lately difcovered in 

 France by C. Lelievre. Of the- fubftanccs thought to be 

 foreign to the foil of France, the emerald is not the only one 

 which has been difcovered within a few years in that coun- 

 try. C. Gillet mentioned the following mineral fubftancts 

 found there a little before the revolution : arragonitc, ana- 

 tafe, koupholite, ftilbite, dypire, minilite filex, phofphated 

 lead, native antimony, carburated iron (plumbago). 



Since that period, notwithftanding the fmall number of 

 mineralogical tours undertaken, the following have been dif- 

 covered : dolomie, porphyroidal rock with a calcareous bafe, 

 fulphated ftrontian, aventurine quartz, anthracite, ferrugi- 

 nous fchcelin (wolfram), oxidated titanium, oxidated anti- 

 mony, chromated iron, oxidated uraniuu), arfeniated lead, Sec. 



MEDICAL SOCIETY OF BOUKDEAUX. 



This Society has offered a prize of 300 francs for the beft 

 account of the do6lrine of Hippocrates, or of the Hippocratic 

 fchool of medicine. 



The anfwers to this queflion will be received till the 30th 

 of July 1803. 



COLLEGE OF THARMACy AT PARIS. 



On the loth of November the College held a public fitting 

 for the diftribution of prizes, the nnnifter for the. interior 

 being prelidcnt. 



Bouillon-Lagrange, profelTor of chemiflry, after proclaim- 

 •ins the names of thoie who had obtained prizes, gave an 

 account of the labours of the Free Society of Phaimacy at 

 Paris, and announced the prize qufftion founded by the 

 pra;fe£l of the department of the Seine, which is to be de- 

 .termined in the beginning of the year 13. It is as follow? : 



To determine, by exart experiments, what happens to 

 tliofe fait? moll frequently eniployed, and .particularly tlie 

 fulphates of foda and magnefia, the tartrites of -potafli and 

 fuda, h\ per-oxygenatcd muriate of mercury, and tartrit-;.^ of 



potalh 



