ANALYSIS O^ AMPIIIBOLE, ^J 



REMARKxS. 



Ill a subsequent number of the Journal de Physique Mr. Correction oF 

 ^ , .. . ^ ••.i.L 4. ihe preceding 



Cotte observes, it is souiewhat surprising, that the - newest g^j^^g'^^^jj^ 



thermometer should have lost most: and he reminds Mr, 

 Flaui>er^ues, tiiat in 1/34 de Keaumur and Nollet fixed the 

 i'reezuig point hy water just beginning to freeze, which he 

 adds, according to Mr. De Luc's experiments, differs 0*8* 

 from that of melting ice. By an oversight however he de- 

 ducts these 0*8* from 1*25°, and thus reduces theloss of the 

 thermometer to half a degree at most in 73 years. 



Mr. FlautJrergues in reply admits the adjustment of the ^^l'^^ ^^ 

 . ." " - ^ " , . • , farther to coa« 



ireezmg point; and very properly subjoins, that, as he had firmii. 



placed it so much too low, the thermometer in reality did 



not rise so high, as when it was made, by 1*25^ + 0*8°, or 



2'0S°> which amounts to nearly the same as the less of Ro- 



mien's, the freezing point of which was no doubt that of 



melting ice. Tliis therefore only tends to strengthen his oIh- 



6ervation^ ; and he remarks, that two thermometers made by 



different persons, at very different periods, can hardly be 



expected to have contained spirit of precisely the same 



strength ; which accounts for one having lost in dilatability 



. rather more than the other in about three fourths of the 



It IS to be regretted, that Mr. Flaugergnes did not exa- 

 mine the dilatability of the spirit in higher temperatures 

 also. C. 



Analysis of tie Amphiboh of Cape de Ga/t'es, in the King' 

 dom of Qrenada: by Mr, Laugier*. 



HIS amphihoijle is found affiong the volcanic pioducts at Homblen<1« 



^ape^deGattes.^ Jts crystals have a black hue, and are J!|^j^"^^jj^jy^^^ 



* Ann^Ws de Ohimie^ vol. LXvI, p/325. Abiidyed from tht An- 

 nalcsdu Museum i^^'ttUt. N^at. T>y Mi''BouJlton-Laj;i-ange. 

 ^^"^''^ '- formed 



