Ryan & Dillon — On Montanin and Montana (Montan) Waxes. 209 



and of its iinsaponifiable portion (58-59^ C.) — all of which agree fairly closely 

 with the corresponding constants for Montana "Wax. 



In conclusion, we wish to draw attention to the fact that Montana and 

 Montanin Waxes contain acids whose mean molecular weight is higher than 

 that of Cerotie Acid, and, therefore, that processes for the analysis of 

 Beeswax, which depend mainly on the estimation of the molecular weight of 

 the ' free acid,' cannot give correct results in the presence of Montana or 

 Montanin Waxes. 



SCIENT, PECO. R.D.S., VOL, XII., NO. XX. 



2m 



