Issued May 29, 1909, 



U. S, DEPARTMENT OF AGRICULTURE 

 BIOLOGICAL SURVEY— BULLETIN Ko. 33 



C. HART MERRIAM, Chief 



THE BROWN RAT IE THE 

 UNITED STATES 



BY 



DAVTD E. LANTZ 



ASSISTANT, BIOLOGICAL SURVEY 



WASHINGTON 



GOVERNMENT PRINTING OFFICE 

 1909 



