teUPAtORlUM PERFOLIATDM. 2] 



EXPERIMENT II. 



The following re-agents were then tried with 

 the decoction of the leaves ; An infusion of 

 litmus formed a red colour; with an infusion 

 of galls no precipitate was formed ; muriate of 

 tin caused a brownish yellow precipitate, but 

 not so copious as in the first experiment ; oxa- 

 late of ammonia produced a copious white 

 precipitate; pure potash formed a greenish 

 precipitate ; with gelatin a copious precipitate 

 was induced ; pure nitrate of silver caused a 

 copious whitish precipitate ; the acetate of 

 lead formed a yellowish precipitate; nitrate 

 of lead produced an abundant precipitate. 

 As in the decoction prepared from the flowers, 

 a solution of the sulphate of iron, nitrate of 

 mercury, muriate of barytes, sulphuric acid, 

 tartarised antimony, pure ammonia, chromic 

 acid, carbonate of potash, produced effects 

 similar to those mentioned in experiment the 

 first. 



4 



