58 PARASITES OF MAX 



arrived at the conclusion that the hydatid-measle was a kind of 



tapeworm. 



Eespecting the organisation of this worm I may observe that 



the mature joints have a more complicated uterine organ than 



obtains in Tania solium, presenting nearly double the number 



of lateral branches. They 

 are more closely packed, 

 running outwardly in an 

 almost parallel manner. 

 The first sexually ma- 

 ture proglottis occurs at 

 about the 450th joint, 

 but whereas, in the pork 



FIG. 21. Free proglottides of Tatnia mediocanellata. After tapeworm, Onlv SOmC 200 

 Leuckart. J 



subsequent segments share 



this perfect character in the beef tapeworm, according to Leuc- 

 kart, as many as 360 or even 400 mature joints may be present. 

 The joints are very liable to form monstrosities ; these abnor- 

 malities sometimes affecting the reproductive organs, which 

 become doubled or even trebled. In the Hunterian collection 

 there is a proglottid showing twenty-two sexual orifices. Dr 

 Cullingworth, of Manchester, has described a specimen in which 

 the joints are curiously tripartite. 



As already hinted the true source of this parasite has been 

 proved by experiment ; the first successful worm-feeding having 

 been accomplished by Leuckart. Hosier's, and subsequently 

 my own feeding experiments, immediately followed. Other 

 successful experiments with this species have been conducted 

 by Zurn, Probstmayer, St Cyr, Perroncito, Masse and Pour- 

 quier, and Zenker. As will be again mentioned below Dr 

 Oliver, E.A., whilst stationed at Jullundur, successfully reared 

 the adult tapeworm in a Mohammedan groom and in a Hindoo 

 boy. It will also be seen that Prof. Perroncito reared the worm 

 in a student in fifty-four days. In my own experiments on 

 animals I was assisted by Professor Simonds. The feeding 

 materials were tapeworms expelled from my own patients. 

 We obtained the following interesting results : 



Exp. 1. A calf. First feeding, Dec. 21st, 1864. Marked 

 symptoms. Slaughtered April 3rd, 1865. Result positive. 



Exp.2. A calf. First feeding, April 13th, 1865. Second, third, 

 and fourth feedings in May and June. No symptoms. Died 

 on Sept. 3rd, 1865, after thirty-six hours' illness with " cattle 



