loa C O xM M E N T A T I O 



Tandem Berzelii sententiam confirmatam vidi, 

 pum siatueret , cofFeae nondum ustae decoctum Po- 

 tassa immixtum eadem ratione reagenti mutari ac 

 si ipsum venenum adesset (i). Ammoniam loco 

 Potassae sumtam eadem gaudere facultate, insuper 

 mihi patuit. Quibus omnibus efficitur , prudenter 

 cum liocce reagente esse agendum illudque mi- 

 nus esse laudandum quam Hydrogenium sulphu» 

 ^•atum (2). 



Nitras Argenti Ammoniacale. 



H u m e , deinde Marcet et Roget pro rea- 

 gente indicaverunt nitras Argenti. H u m e solutioni 

 arsenicali addidit Potassam causticam (3) , cujus 



au- 



(i) J ahrcsbericJit iiber die Fortschritte der physischen 

 jyisseiischaften, ubers. von G m e 1 i n , Jahr^. III, Tiib» 

 1824. Cf. Sartoriiis und M o n h e i m , 1. c. p. 66» 



(2) Quamvis B o s t o c k testetur : he has no hesitation 

 in giving it as his opinion , that the most conue— 

 nient the most delicate and the most decisipe pro- 

 cess , is the one in which the green pracipitate is formed 

 hy the addition of the sulphate of Copper ; cnjus ope Ar- 

 senicum dctegit , quod j J^g solutionis partem eflBceret ! Ex 

 the Edinb, rned, and surgic, Journ. V- 170 and 1^4. in 

 Lond. med. chirurgic, Transactions , Vol. II. p. i5g, 

 [third edit.) 



(3) Philosophic. Magaz. f. May 1809. ^^' Lond, med. 

 chirurgic, Transact, ibitl. 



