414 Mineralogia. 



Paolo Mascagnt, 



Sopra il fal fedativo d'Hombergio o lia acido boracico die 

 £1 trova ai lagoni del Volterrano e del Senefe e fopra 

 diverfi borati che pur ivi li trovano. 

 Commentario 1, Notizie preliminari riguardanti il borace 

 di foda che viene trafportato dalle Indie in Europa 

 e 1'acido boracico. 

 P. 1. Idea generale dei lagoni del Volterrano e del 



Senefe. - 

 P. 2. Dell' acido boracico Tofcano. 

 P. 3. Deli' acido boracico concrelo. 

 P. 4. Del metodo di eltrarre Tacido boracico dei la- 

 goni, di formarne il borace, e di metterlo in 

 commercio. 

 Memorie della Soc. Italiaiaai T. 3. p. 437. 

 If... Exciiaquet ejt 

 Henri Struve, 



Obfervation fur l'analyfe du fel fedatif et fur la compo- 

 lition du borax. 

 Mem. de Laufanne. T. 2. Hift. p. 36. Mem. P. 1. p. 132. 

 Lawrence Crulil, 



On the decoinpolition of the acid of borax or fedative fait, 

 philof. Transact. Y. 1799. P-5^. 



Vitriolum. 



* # * 



Some obfervations and experiments about vitriol , tending 

 to find out the nature of that fubftance, arid to give 

 further light in the inquiry after the principles and 

 properties of other minerals. 

 Philof. Transact. Y. 1674. P- 4 1 - 



Continuation cf the difcourfe concerning vitriol, shewing 

 that vitriol is ufually produced by fulphur, acting 

 on, and cOncoagulating with a metal; and them 

 making out, that allom is likewife the refult of the 

 faid fulphur; as alfo evincing, that vitriol, fulphur 

 and allom do agree in the faline principles; and 



laftly 



