T^NIA MEDIOCANELLATA. 



239 



Leuckart has also personally informed me tliat he has, in 

 conjunction with Professor Mosler, repeated this kind of ex- 

 periment with precisely similar results, and since our interview 

 I find he has placed the particulars of the experiment on record 

 in the appendix to the tliird part of the first volume of his 

 invaluable treatise.* In this third case a healthy calf, three 

 months old, was fed first with one hundred proglottides, and 



4 

 ■-•"'s^ 





\ • ■ 



Fig. 5] . — Section of the heart of a calf which died from acute cestode tuberculosis, produced by 

 the administration of proglottides of Tcenia mediocanellata. (Natural size.) — Mosler. 



three days afterwards with fifty more. At the eighth and eleventh 

 days respectively, subsequent to the worm-feeding, several morbid 

 symptoms made their appearance. " The animal lost appetite, be- 



* " Die menschlichen Parasiten," Erst. Bd. s. 747-— This experiment has since been 

 more fully detailed by Mosler himself, in his brochure, entitled " Helminthologische 

 Studien und Eeobachtungen." Berlin, 1864. 



