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Updated: June 10, 2025
The work of the physics labs was operating on the differential ability of various gas molecules to "leak" through plastic membranes under pressure, causing separation of the various molecular constituents of the atmosphere; shunting carbon dioxide off in one direction, and returning oxygen and the inert nitrogen and other gases back to the surrounding atmosphere.
So long as the pavement-cells of our mucous membranes are healthy, they can keep them out indefinitely. Lower their tone by cold, fatigue, underfeeding, and their line is pierced in a dozen places at once. One of the many horrifying things which bacteriology has revealed is that our bodies are simply alive with germs, even in perfect health.
But if it have not sufficient strength to break the membranes and to come out as ordained by nature, it will continue in the womb until the ninth month, so that by that time it may be again strengthened. But if it returns to the attempt in the eighth month and be born, it cannot live, because the day of its birth is either past or is to come.
The wings are many-veined membranous sacs, covered with scales that are coloured according to species and arranged to form characteristic family markings. They are a framework usually of twelve hollow tubes or veins that are so connected with the respiratory organs as to be pneumatic. These tubes support double membranes covered above and below with down.
No food, except water mixed with a little orange or lemon juice, passed the lips of the patient for eight weeks. When all disease symptoms had disappeared, we allowed a few days for the rebuilding of the intestinal mucous membranes. Thereafter food was administered with the usual precautions. The patient gained rapidly and within six weeks weighed more than before the fever.
So inflamed tendons and membranes, and even bones, acquire new sensations; and the parts of mutilated animals, as of wounded snails, and polypi, and crabs, are reproduced; and at the same time acquire sensations adapted to their situations.
Volvocineae. Microscopic cellular fresh water plants, composed of groups of bodies resembling zoospores connected into a definite form by their enveloping membranes. The families are formed either of assemblages of coated zoospores united in a definite form by the cohesion of their membranes, or assemblages of naked zoospores inclosed in a common investing membrane.
In that case, also, relief through the surgeon's knife is sought and then the process is reversed: after the adenoids have been removed, the tonsils develop chronic catarrhal conditions. "When both tonsils and adenoids have been removed, the nasal membranes will, in turn, become congested and swollen.
It has in it certain cell centres that give origin to six of the cranial nerves. The third division of the brain is the cerebellum. This is a single mass supported by the isthmus. It is situated posterior to the cerebrum, from which it is separated by a transverse fold of the membranes covering the brain. This mass of nerve tissue is much smaller than the cerebrum.
The thin layer of tissue which covers those internal cavities or passages which communicate with the external air. Mucus. The glairy fluid secreted by mucous membranes. A defect of vision dependent upon an eyeball that is too long, rendering distant objects indistinct; near sight. Chief proteid substance of muscle.
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