LETTER OF TRANSMITTAL. 



UNITED STATES DEPARTMENT 01 ACJRHTLTIRK, 



BIKEAI OK ANIMAL IMHSTKY, 

 Washington, I). ('.. January 17. 1!)1 1. 



SIR: I have the honor to transmit the accompanying manuscript 

 of an article entitled "A Comparative Study of Methods of Examin- 

 ing Feces for Evidences of Parasitism," by Mr. Maurice C. Hall. 

 Assistant Zoologist in the Zoological Division of this bureau, with the 

 recommendation that it be published as a bulletin of this bureau. 



Mr. Hall has devised a method of examining feces by means of 

 which the presence or absence of parasites infesting the alimentary 

 tract may be rapidly and accurately determined. Various methods 

 of fecal examination are in vogue among medical and zoological 

 investigators, and these are all critically compared with Mr. Hall's 

 method, which is shown to yield superior results. 



Respectfully, 



A. I). MKLVIX, 



('kief of Bureau. 

 Hon. JAMES WILSON, 



Secretary of Agriculture. 



