1894.] Contributions to the Chemistry of Chlorophyll. 

 In 100 parts 



355 



I. 



68-82 



5-85 



12-85 



II. 



68-61 

 5-88 



PhylJotaonin Acetate. 



This compound was prepared by dissolving phyllotaonin in boiling 

 glacial acetic acid and allowing to crystallise. 



0-1282 gram substance dried at 130 gave 0*3194 C0 2 and 0'0715 

 H 2 0. 



In 100 parts 



C 67-95 



H 6-17 



In determining the C and H x)f this compound, Mr. Joseland ob- 

 tained the following numbers : 



0-1425 gram substance gave 0-3564 CO 2 and 0'0754 H 2 0. 

 In 100 parts 



C 

 H 



68-25 

 5-88 



There are several formulae with which the analyses of the deriva- 

 tives of chlorophyll given above more or less closely agree, as will be 

 seen from the following table : 



Phyllotaonin. 



Calculated. 



Methylphyllotaonin. 



Calculated. 



VOL. LV. 



2 C 



