104 



A. — Continued. 



* From June 7 to August 15 inclusive, cysticerci were found in most of the animals examined, 

 t No iwnim found in the two lambs. 

 X No tcenice found in lambs. 



Experiments— Noveniber 30, 18S6.— Six lambs, selected from a liunch that had been 

 kept in an inclosure since the 15th of October, were, with two yearlings and two two- 

 year-old wethers, crated and sent to the United States Veterinary Experimental Sta- 

 tion at Washington. The lambs were from a collection of the runts of a large flock 

 which had been fed on hay made from prairie grass and on coarse oorii-meal and 

 bran before November 30. They were watered from tubs, the water being drawn 

 from a well and a pond near by. The laud on which the hay was grown had not 

 been crossed by sheep since spring, at least. The water was clear. The chances of 

 infection from these sources were small. The corral where tbey were kept was a 

 good warm shed, located amidst others, with a small adjoining yard. The dogs, of 

 which there were two and sometimes more, had free access by jumping the hurdles; 

 but I do not remember ever having seen one in the inclosure after the lambs were 

 admitted. With these lambs were two old bucks and a few sheep, which were either 

 lame or otherwise ailing. They arrived in Washington, D. C, December 4, 1886, 

 and were afterwards placed in stalls where they could not be re-infecte*l excepting 

 from each other. As Table B shows that there were no adult tainke in the lambs, 

 reinfection coald only be through the four older sheep confined with them. Eein- 

 fection could not possibly have proceeded from some Eastern sheep confined with 

 them, for these sheep, when examined, had no T. flnibriata. No dogs were admitted 

 to the box-stalls where tbey were kept. Their food was Eastern clover and mixed 

 corn and bran. They were furnished with well-water and salt. The adults were 

 numbered 101 to 104 ; the lambs from 105 to 110. 



December 9.— Two Eastern lambs, Nos. Ill and 112, were put in the pen with Nos. 

 101 to 110 inclusive. Nos. Ill to 118 were a number of Eastern coarse-wooled sheep, 

 bought for experimental purposes. 



December 13.— Nos. Ill and 113 were found to pass mature embryo bearing proglot- 

 tides of T. expansa. 



