No. 4.] REPORT OF CATTLE BUREAU. 361 



in the meadow and driven back to their pasture. Whether 

 the meadow is infected with some germ disease from the 

 tannery, or whether the animals died as a result of some 

 chemical in the water, has not been ascertained. Water was 

 taken from the swamp near the tannery to the Agricultural 

 College at Amherst by Dr. James B. Paige, and analyzed, 

 but none of the common poisons were found in it. Previous 

 to this year twenty or thirty other cattle must have died in 

 various seasons from obtaining access to this piece of ground, 

 and these fatalities caused in animals which obtained access 

 to this meadow are certainly worthy of further investigation. 

 It is to be hoped that at some future time the cause of these 

 deaths may be ascertained. 



Glanders. 



During the year from Dec. 15, 1901, to Dec. 15, 1902, 

 a great deal of the work in connection with glanders has 

 been done by Dr. Howard P. Rogers, one of the agents of 

 this Bureau, and this portion of the report has been almost 

 entirely prepared by him. 



During the year 1902 the importance of work among the 

 horses was still manifest, as indicated by the number re- 

 ported and examined, and the number killed, both by the 

 order of this Bureau and by the owners individually. While 

 the numljer examined is much larger than in any other year, 

 the number killed is eight less than in 1901. The cities 

 continue to give the larger number of cases. 



The sources of information continue as diu^ing the last 

 three years, and can be divided into three general classes : 

 first, the reports of local inspectors of the towns and cities ; 

 second, reports from individuals directly to this office ; and 

 third, reports from the rendering establishments. 



In the first instance, there seems to be less tendency than 

 formerly on the part of local inspectors to keep suspected 

 horses under their own personal observation. This is mani- 

 festl}^ the better way, as, by the use of mallein or the 

 guinea pig test, many cases can be determined much" sooner 

 than would be possible by waiting for natural developments 

 to allow of a positive diagnosis on the physical symptoms. 



