352 



Dr. K. Sclmiirk. 



[Apr. 



accordingly determined, two analyses made by different ol 

 leading to concordant results. Unfortunately, as previously 

 plained, the compound is of such a nature as to make the eliminat 

 of copper and the consequent separation of the phyllocyaniu ir 

 possible ; otherwise the preparation of pure phyllocyanin from 

 compound would have been easy. 



More satisfactory results were obtained in the case of phyllotaoi 

 and its compounds. These beautiful substances being well ci 

 lised and easily soluble in chloroform, but much less so in alcol 

 may be obtained in a state of comparative purity, and I have 

 to think that the numbers yielded by analysis represent, 

 tolerable accuracy, the composition of these bodies, although, in 

 sequence of their high atomic weights, some doubt remains even 

 regards the corresponding empirical formulae. 



Phyllocyanin Cupric Acetate. 



The preparation and properties of this compound have been 

 \iously described. Its analysis led to the following results. 



I. 0-1221 gram substance gave 0'2715 C0 2 and 0'0577 H,0. 

 0-4226 17-8 c.c. N at 15 and 728'6 mm. 



0-2065 0-0236 CuO. 



II. 0-4763 1-0550 CO, and 0*2315 H 2 0. 



These numbers correspond in 100 parts to 



I. II. 



C 60-64 60-40 



H 5-25 539 



N 4-74 



Cu . 9-12 9-07* 



The formula Cn 



requres 



C 

 H 



N 



Cu 



O 



60-27 

 5-33 

 4-49 

 9-52 



20-39 



MelKylphy llotaonin. 



The substance prepared in the manner formerly described, the 

 apparently pure, was still contaminated with fatty matter, and ha< 



* The details of the analysis yielding this percentage of Cu are unfortu 

 lost. 





