103 



inform himself, as nearly as possible, of the causp, of death. In case of 

 the presence of tape- worms, causing sickness, he can soon inform him- ■ 

 self of their abundance, of the absence of other disease, and of many 

 other things. He can soon .judge whether others of his flock have them, 

 and can more intelligently set about their treatment. A careful study 

 of each case will then place the observant man in possession of many 

 facts which will help him in the proper management of his flock. 



The above recommendations have been written with a view of keep- 

 ing the food and drink of the animal as clean as possible. Other pre- 

 cautions will suggest themselves to tLe ranchman. 



Post-mortem examinations. — The tables herewith presented are the 

 resalts of postmortem examinations of sheep, some of which were killed 

 expressly for the purposes of investigation. Others were examined while 

 being slaughtered for food, either on ranches or at the shambles iu Col- 

 orado Springs, Colo., while in other cases examinations were made upon 

 dead sheep found either at or in the vicinity of various rjinches. From 

 the wide-spread distribution of the disease, the notes are such as could 

 be taken from nearly all localities, and can not be ascribed as purely 

 local causes. Where the obsei'vations were taken from the sheep raised 

 in States other than Colorado, the State from which they came is given. 



In addition to the presence of Twnia fimbriata, the occurrence of 

 Twnia expansa has been noted, and also of Twnia marginata, which 

 occurs in sheep in its cysticercal stage. The examinations at the sham- 

 bles could not be conducted with the same accuracy while hunting for 

 Tcenia fimbriata; the occurrence of the cysticerci is, therefore, omitted 

 in the post-mortem observations of June 7, 1887, to August 15, 1887, in- 

 clusive. 



Table A shows that tceniai occur in sheep throughout the year. It 

 also indicates a wide-spread distribution. 



A. 



