TRICUIXUSIS OF MAX AXD ANIMALS. 35 



In some cases cysticerci, measles, perish and become calcified. 

 These objects are somewhat larger than trichina-capsules, and often 

 contain a caseous mass. 



The sacs of Raiuey, or, as they are also termed, " psorospermije," 

 are elono^ated granulous bodies, like the triehime, situated wii/nn 

 the sarcolemnia of the liber. Their true nature or pathological im- 

 portance is not yet well determined. 



Some valuable diagnostic 

 points are, that in the latter — i '^ . , " ' ' ^r) 



trichinai — the striation of the 

 fiber is entirely destroyed with- 

 in the capsule, while by i)soro- 

 sperms it is retained, limiting 



the objects laterally, and con- ' 



tinning directly from their ex- 

 tremities. 



Bruch,Virchow, and Leuck- 



art have described peculiar ,. r r. n - xr 



_ ■» iio. 5. — r<c;iu)srKKMS in a Hugs Mlscle. 



roundish or oval objects of a (Leuckart ) 



whitish color, having varying 



dimensions, which sometimes appear in the flesh of hams, and which 



have been demonstrated to consist of agglomerates of needle-like 



crystals. They fill the fiber to a variable degree without otherwise 



disturbing its contents, and disappear upon the addition of muriatic 



acid, the normal striation again becoming visible. 



TmcnixiAsis in Max. 



It is not my purpose to write an essay on the pathology of 

 trichiniasis, either in man or animals, but to give the necessary 

 natural historical facts of its life, and to illustrate its jirevalence, 

 with short notices of the phenomena of the disease in the above 

 species. Treatment being so unsuccessful, it would be folly to notice 

 it, and it also belongs more to works on medicine than in an essay 

 on hygiene, or a contribution to preventive medicine. 



It has been previously mentioned that the honor of confirming 

 the causal nexus between trichina? in j)ork and in man belongs to 

 Dr. 2ienker of Dresden, Germany. This was in the case of a ser- 

 vant-girl, admitted to the city hospital at Dresden, as a typhus 

 patient. She died, her nmscles being found completely infected 

 with trichinse. At the same time that she became ill, other per- 

 sons of the same family, and the butcher that slaughtered a hog 

 for them, were ill also, but in a modified form. An examina- 



