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Updated: May 11, 2025
In operation all that is necessary is to watch the steam pressure at the "Throttle" and "Inlet" gages, to see that neither this pressure nor the steam temperature varies much; to keep the vacuum constant, as well as pressures on the water glands and those indicated by the "Relay Oil" and "Bearing Oil" gages; to take care that the temperatures of the oil flowing to and from the bearings does not exceed 135 degrees Fahr.
At any stage the disease may be arrested and the glands remain for long periods without further change. It is possible that the tuberculous tissue may undergo cicatrisation. More commonly suppuration ensues, and a cold abscess forms, but if there is a mixed infection, the pyogenic factor being usually derived from the throat, it may take on active features.
The viscid pollen-gland is here very peculiarly formed, elongated and pointed at each end, and it is not until we witness the act of its removal on the tongue of the butterfly that we can fully appreciate its significance. I have often seen butterflies at work upon this orchid, and have observed their tongues generously decorated with the glands and remnants of the pollen masses.
Mucilaginous fluid is secreted on their surfaces. III. Three kinds of rheumatism. The capillary-vessels are like all the other glands except the absorbent system, inasmuch as they receive blood from the arteries, separate a fluid from it, and return the remainder by the veins.
These structures—secreting cells, basement membrane, capillary and lymph vessels, and nerve fibers—form the essential parts of all glands. The capillaries and the lymph vessels supply the secreting cells with fluid, and the nerves control their activities. *Kinds of Glands.*—Glands differ from one another chiefly in the arrangement of their essential parts.
This "water-jacket" coat of tiny blood vessels all over our body has some very important uses: It allows the heart to pump large amounts of blood out to the surface to be purified by the sweat glands, and to breathe out a little of its carbon dioxid and other gas-poisons. The Skin as a Heat Regulator.
We call them vascular glands, and we believe that they elaborate colored and uncolored blood-cells; but just what changes they effect, and just how they effect them, it has proved a very difficult matter to determine.
Therefore, nicotin becomes a decided cause of hypertension and arteriosclerosis. Thayer found that heavy work is the cause of about two thirds of all cases of arteriosclerosis, and one of the functions of the suprarenals is to destroy the waste products of muscular activity; hence these glands, in these cases, are hypersecreting.
Most scientists of the past century asserted that it was a vestigial relic of prehistoric usefulness. To-day we know better. "One by one the functions of the internal secretions are being discovered. Our variously acquired bits of information concerning the ductless glands lie before us like the fragments of a modern picture puzzle.
The hastening of sexual hair by tumors of the adrenal gland may also be put down to a release from restraint of the interstitial sex cells. There are certain spheres in the hair geography of the body, over which particular glands may be said to rule or to possess a mandate. The hair of the head seems to be primarily under the control of the thyroid.
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