<Li> 37 U.S. Stat. 416 (1912) (Sherley Amendment) </Li> <Li> 37 U.S. Stat. 732 (1913) (Gould Amendment) </Li> <Li> 41 U.S. Stat. 271 (1919) (Kenyon Amendment) </Li> <Li> 42 U.S. Stat. 1500 (1923) </Li>

Where did the pure food and drug act take place