24 DISSERTATION ON THE 



it produced a green precipitate ; with distilled 

 water no precipitate. 



EXPERIMENT V. 



A decoction of the leaves, treated in the 

 same manner as in experiment the fourth, ex- 

 hibited the following appearances: An infu- 

 sion of litmus formed a red colour ; a solution 

 of the acetate of lead formed a copious light 

 green ; with distilled water a precipitate was 

 formed ; carbonate of potash caused a copious 

 brown precipitate ; nitrate of lead produced a 

 copious light green precipitate ; nitrate of 

 mercury induced a copious white precipitate ; 

 barytic water formed a dense copious precipi- 

 tate. The effects produced by tartarised an- 

 timony, and with the sulphate of iron, were in 

 no respects different from those mentioned in 

 the last experiment. 



EXPERIMENT VI. 



A decoction of the root was also prepared 

 in the same manner, and the action of the same 



