TREASURY DEPARTMENT 
Public Health and Marine-Hospital Service of the United States 
HYGIENIC LABORATORY BULLETIN No, 54. 
July, 1909 
THE FIXING POWER OF ALKALOIDS ON VOLATILE 
ACIDS AND ITS APPLICATION TO THE ESTIMA- 
TION OF ALKALOIDS WITH THE AID OF 
PHENOLPHTHALEIN OR BY THE 
VOLHARD METHOD 
ELTA.S lELN^ON^^E 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1909 
