“My investigations were extended to other kinds and forms of Helminths, and the results were always the same, so that, abiding by the same principles, I was able to ascertain that—
“1st. The Cysticercus cellulosæ of the pig dies sometimes at 45° C., more frequently at 47° C., ordinarily at 48° C., very seldom reaches alive 49° C., and is quite an exception when it resists for a few moments the temperature of 50° C., so that we can say that the Cysticercus brought gradually up to this temperature most assuredly dies if it is kept there longer than one minute.
“2nd. A Cysticercus cellulosæ, extracted by Professor Raymond from the conjunctiva of a child’s eye, died between 45° and 46° C.
“3rd. The Cysticercus of the Tænia mediocanellata dies sometimes at 44° C., very often at 45° C., and does not resist a temperature superior to 46° C.
“4th. The Cysticercus pisiformis of the rabbit, like the cellulosæ, dies sometimes at 45° and 46° C., but generally stands still and perishes at 47° and 48° C.
“5th. A Cysticercus tenuicollis died at 49° C.
“6th. The scolici of the Cœnurus cerebralis of a sheep died at 42° C.
“7th. The scolices of the cysts of Echinococcus polymorphus die generally between 47° and 48° C., and in no case amongst those I have experimented on did it reach 50° C. alive.
“8th. The Tænia cucumerina died, one at 43° C., and a second parasite at 45° C.
“9th. A few individuals of Tænia serrata of the dog died at 50° C.