Srientific American. May 17, 1884.] 311 Two Dangerous Parasites. (Continued from page 294.) parasites infesting man is the Dochmius duodenalis. nematoid worm was discovered by Dubini at Milan in 1838, and thirteen years later Griesinger made known its relation of their sharp hooks, and suck … ened. Victims of the disease man, yetso apish. Inthe posi- may die in collapse within tion it occupies it is ninety- a few weeks or even days seven centimeters (about three throughout Northern Italy it is tolerably common. It has been known from time im- The parasite may be described as follows:…
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