160 PARASITES OF MAN 



died on the 8th of the same month. On examination we found 

 several living Trichinae in the sterno-maxillaris and other 

 muscles. Some of the parasites were encysted. 



Exp. 16. From the 9th to the 12th of June inclusive four 

 separate worm-feedings with the flesh of the trichinised 

 terrier-dog were administered to a crow. The bird was killed 

 some months afterwards and sent to me for examination. Its 

 muscles were entirely free from Trichinae. 



Exp. 17. From the 9th to the 17th of June inclusive seven 

 separate worm- feedings were administered to a pig. One of 

 the " feedings " was with the trichinised guinea-pig's flesh, the 

 others from the dog. This animal was not destroyed until the 

 4th of April, 1866, when all the muscles which I examined were 

 found extensively infested with Trichinae. There were probably 

 not less than 16,000,000 present, all being alive and enclosed 

 within perfectly-formed capsules, none of which latter exhibited 

 any traces of calcareous deposition. 



Exp. 18. Four separate feedings with trichinous dog's flesh 

 were likewise, at the same dates as the foregoing, administered 

 to a rat. This experimental animal, however, like the one 

 previously mentioned, contrived to make its escape. I fear it 

 was well trichinised. 



Exp. 19. About the same date trichinous "feedings " were 

 given to a black puppy (bred at the Veterinary College). The 

 dog was killed on the 18th of August, 1866, having also been 

 made the subject of an echinococcus-f ceding, when I found 

 abundance of encysted Trichinae within the voluntary muscles. 



Exp. 20. Four separate worm-feedings with the flesh of the 

 trichinised guinea-pig were given to a sheep on the 15th, 16th, 

 17th, and 19th days of June, 1865. The experimental animal 

 was destroyed on the 29th of the same month, but the result 

 was negative. 



Exps. 21 and 22. " Feedings " with the guinea-pig's flesh 

 four in the one case and three in the other were also ad- 

 ministered by Mr Simonds (from the 15th to the 19th of June, 

 inclusive) to a chicken and goose respectively. These birds were 

 destroyed some months afterwards and sent to me for examina- 

 tion, but the most careful scrutiny failed to detect any 

 Trichinae within their muscles. The goose was cooked and 

 eaten without the slightest hesitation. The chicken I found 

 too tough for consumption. 



Exp. 23. On the 28th of March, 1866, I obtained a small 



