92 MICROSCOPICAL EXAMINATION OF MEASLED PORK. 
beneath which are situated 4 circular organs (£, b), afterwards 
more fully developed in the mature condition of the 
Cysticercus . 
The hooklets, upon further examination with higher powers 
of the microscope, are seen to consist of a stem fixed in the 
flesh of the head (fig. 6 a), a barb (fig. 6 b), and a sickle-like 
point (fig. 6 c ). 
The Cysticercus , as above described, constituting the 
“ measles, ” is imbedded between the fasciculi of the muscle, 
and occupies a chamber formed by the inflation of its cyst. 
The cyst which in a fresh state fills the entire chamber, 
on the death of the pig parts with its contained fluid, which 
permeates the surrounding tissues. 
The chambers then collapse, and the muscle in consequence 
becomes soft, and flabby to the touch. 
The “ measles” in the specimens supplied to me were all 
visible to the naked eye, the cysts when inflated being of an 
elliptical form, and having an average length of about one 
third of an inch. 
The coil of the enclosed worm was nearly globular, with 
an average diameter of about one tenth of an inch. 
In the “ slightly measlecl” pork the size of the worm was 
often less than in the “ badly measled,” but in every case 
the Cysticercus seemed to have reached the same degree of 
organic growth, and in none of the specimens, “ healthy” or 
otherwise, could I detect the slightest trace of the animal 
in an earlier stage of development. Had the eggs, or young 
animals, existed, they could not have escaped my notice. In 
the specimens marked “ healthy” there was no trace whatever 
of the Cysticercus . 
The muscular tissues at a little distance from the cysts 
did not present any distinct alteration in their normal and 
healthy character, but in the immediate neighbourhood of 
the cysts there were evident traces of the altered or diseased 
condition of muscle known to physiologists under the name 
of “fatty degeneration Where the “ measles” are numerous 
fatty degeneration would be proportionally great in comparison 
with the amount of healthy muscle. 
In the salted specimen the cysts were empty of fluid, and 
the “ assimilating cellules” in the body of the worm had be- 
come somewhat opaque, presenting a central granular nucleus 
instead of the clear transparent appearance noticed in the 
fresh specimens. I conclude from this that the life of the 
Cysticercus is destroyed by the process of “ curing Fig. 7 
shows the appearance of the assimilating cellules in the fresh > 
and fig. 8 in the cured specimens. 
