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If such a hernia occurs bilaterally, it is called a double hernia. A femoral hernia
lies on the inner side of the large femoral blood vessels. An umbilical hernia
protrudes through the navel. A hernia may be present at birth as the result of
They occur worldwide in lakes, ponds, and streams and are most abundant in
waters cooler than 21° C (70° F). Some species, such as the green hydra,
Chlorohydra viridissima, and the brown hydra, Pelmatohydra oligactis, are
The throat is often red; a membrane, white to dark y in colour and resembling that
of diphtheria, may be present; ulceration of the pharynx occurs occasionally.
There is a petechial rash on the soft palate in many cases. In about two-thirds of ...
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LibraryThing ReviewUser Review - keylawk - LibraryThing
This is the 198215th Edition, in two halves, with the Macropaedia and the Micropaedia. First published in 1768, the publisher is the oldest English-language encyclopedia still in print. Two Scottish ... Read full review