448 
F. S. BILLINGS. 
the number of these parasites infesting a human organism, at such 
a ratio, would sum up some thirty millions. 
In Zenker’s case—to be especially noticed later—Fiedler cal¬ 
culated that the woman must have lodged some ninety-four mil¬ 
lions, and Cobbold assumes that one hundred millions of these en- 
capsulled parasites may sometimes infest one organism at the 
same time. 
Leuckart says that no one would look upon the above as exag¬ 
erated estimates, who, like himself, has found some 60 trichinae in 
10 mgms. of muscle. 
In a report of the Chicago Academy of Sciences, noticed in 
the Boston Medical and Surgical Journal , Yol. LXXY., it was 
estimated that one cubic inch of pork, examined under their au¬ 
spices, contained 10,000, and that a person consuming the ordi¬ 
nary amount of such moat used at a single meal, would intro¬ 
duce into his organism more than 1,000,000 of these parasites. 
^District Veterinarian Rauch (Wittenberg), found numerous 
trichinae in the muscles of a hog. Of 300 microscopic prepara¬ 
tions, they failed in but three. In some preparations he found 
30 in one focus; in others but five or six examples. As in 70 
specimens, weighing one gramm, 350 trichinae were found, one 
pound would contain 175,000, and if the flesh alone of a swine 
weighs 100 pounds, it would, at such a percentage, contain 17,- 
500,000 trichinae. 
In many cases, however, the parasites are much less frequently 
met with, and one has to search through many microscopic prep¬ 
arations before meeting any, and these are only isolated examples. 
When sufficient time has elapsed from the invasion of the muscu¬ 
lature and formation of the capsule, the same may be recognized 
with the naked eye as small white specks; such muscles appear¬ 
ing as if sprinkled with grains of fine salt or white sand. The 
calcification of the capsule begins about the fifth month after the 
invasion of the muscles. 
In pork, however, this is not the case, the capsules never pre¬ 
senting this appearance, which must be due to the action of the 
fatty oils upon the lime, as an examination with the polarioscope 
*Preus. Mittheil, 1877-78, p. 100, 
