NEMATODA 159 



Exp. 9. From the 15th to the 20th March, 1865, inclusive, 

 three small Trichina " feedings" were likewise administered to 

 a guinea-pig. This little animal was not destroyed until the 

 15th of the following June, when a positive result was obtained. 

 The pectoralis transversus and other muscles were found to 

 harbour a considerable number of encysted Trichinae. 



Exp. 10. On the 20th March, and again on the 21st (1865), 

 " feedings" from the same human subject were administered to 

 a hedgehog. On the 26th of April the animal seemed to be 

 attacked with symptoms of Trichinosis. It refused food, kept 

 its head extended, and the eyelids closed. On the 27th it 

 appeared much worse, and on the morning of the 28th it was 

 found dead. On the 29th I examined the flesh, and found abun- 

 dance of living Trichinae in the muscles. The capsules were 

 very thin and transparent. A few days later Mr Simonds also 

 examined the flesh, and confirmed this result. 



Exps. 11 and 12. Two chickens were fed, on the 21st of 

 March, with the same material. One of the birds died on the 

 24th, when I examined the intestines and detected one or two 

 very minute nematodes, which, at the time, I believed to be 

 imperfectly developed Trichinae, but subsequently saw reason 

 to alter my opinion. The other bird died on the 3rd of April, 

 and certainly contained no muscle-Trichinae. 



Exp. 13. On the 22nd and 23rd of March "feedings," 

 amounting to an ounce of flesh in all, were given to a mole. 

 This animal was returned to the care of Mr Charles Land, who 

 had previously sent it to the Veterinary College. He subse- 

 quently reported that, after observing the mole to be "working" 

 for two or three days, he lost all trace of it, and concluded that 

 it had either escaped or was dead. 



Exp. 14. On the 1st and 2nd of May portions of the left 

 fore extremity of the hedgehog (in which we had successfully 

 reared Trichina from the Middlesex-Hospital subject) were 

 offered by Mr Simonds to a cat. It ate the flesh very readily, 

 consuming the entire limb. On the 15th of the following June 

 the cat was killed, when living Trichinae were found within all 

 the muscles which we examined. 



Exp. 15. At the same dates a young terrier dog was simi- 

 larly treated, but did not take the " feeding" so readily. In 

 this case the left hind extremity of the hedgehog was employed, 

 and what was not eaten voluntarily was forcibly introduced. On 

 the 1st of June the dog was attacked with " distemper," and 



