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TEXAS NATURE OBSERVATIONS AND REMINISCENCES. 49
food which are consumed raw. chow, Kuchenmeister, and others,)
Having thus entered the alimen
that the echinococcus is a sort of
tary canal, the minute embryos cystic tapeworm and the embryo
bore themselves '.with their six state of the taenia echinococcushooklets
into the stomach walls the same as the cysticercus cellnor
intestinal canal, until they losae is related to the taenia sogradually
migrate further and lium. Experimental tests with
eventually enter the liver or other echinicocci of man introduced
organs. (The hooklets in echino
into animals have proven negative
cocci of rabbit are very numerous so far, but, acording to Niemeyer's
and the sucking cups also, pathology, it has been proven that
but generally six, while in animals fed on echinococci of ancommon
taeniae there are other animal developed the taenia
only four cups to be seen). Here echinococci in the intestines of
the small embryo swells up to a such animal experimented upon.
large cyst and in this cyst a colony The immense proliferating properof
small unripe taenia or scolices ties, each vesicle containing, acsprout
up," etc. cording to Friedberger (PathoThe
main cause of the disease logy of the Domestic Animals), as
in Iceland, according to Kuchen
many as thirty scolices, and in one
meister, is attributed to the many echinococcus alone as many as a
dogs kept there; these and the thousand; its very minute size and
warm drinking water being re
its vitality and tendency to mulsponsible
for the enormous spread
tiply in the rabbit faster than the
ing of the disease in man, as the same species of parasites in man,
dogs devour the cystic deposits readily explains the immense and
which are carelessly thrown wide-spread infection in the rabbit
about the yards, and the people and canine species. Luckily
are reported to sleep with the dogs though, we Texans are not living
in one and the same hut in many in Iceland, and our advanced civinstances.
In jthe case of our ilized methods of preparing and
jack rabbits, undoubtedly the cooking food, our protected and
same process of propagation or wholesome hydrant drinking waauto-infection
takes place, and it ter, and also the abondonment of
is a noticable fact that when our eating raw meat has cut a great
prairies are covered with an abun
figure and added immensely in the
dance of luxuriant green grass, prophylaxis against all sort of parcystic
diseased rabbits are rarely asite disease, and we owe it to our
met with; as soon though as a good housewife and hotel cooks in
prolonged drought season pre
general that such parasite disease
vails, such as the present one, and as echinococcus in man is rather a
the rabbits are compelled to eat very rare occurance in Texas.
nearly directly from the ground, Among Texas cattle andsheep this
they also perhaps devour numbers disease also is hardly known, as
of the echinococcus eggs or taenia far as I am informed, and the
embryos, and the prairie is thea question naturally arises: Is this
found to be covered with diseased parasite in our rabbit of the same
rabbits. The wolves, and perhaps species as the one that produces
sheep also, undoubtedly spread such havoc in some other counthe
disease. The wolves kill and tries? That, from its description
eat the remnants of the diseased and histological appearance, this
or killed rabbits and deposit the embryo-coccus of the jack-rabbit
ova or embryo in their manure. is near related to the echinococcus
It is an accepted fact by an
of man, there hardly can be any
thorities (Leuckart, Sicbold, Vir
doubt. At any rate, though, it
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Menger, Rudolph. Texas Nature Observations and Reminiscences, book, 1913; San Antonio, Tex.. (https://texashistory.unt.edu/ark:/67531/metapth14396/m1/49/?q=menger/: accessed April 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Special Collections.