JJl 
TREASURY DEPARTMENT 
Public Health and Marine-Hospital Service of the United States 
HYGIENIC LABORATORY.— BULLETIN No. 47 
October, 1908 
STUDIES ON THYROID 
I.— THE RELATION OF IODINE TO THE 
PHYSIOLOGICAL ACTIVITY OF 
THYROID PREPARATIONS 
By 
REID I H INT' 
and 
ATHERTON SEIDELL 
t 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1909 
