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Updated: October 1, 2025
In other words, that a certain period of incubation is required in the body of the insect before the germ reaches its salivary glands, and consequently before it is able to inoculate any individual with the germs of yellow fever.
Flatulence, distress at the epigastrium, irregularity of bowels, indicated a spasmodic performance of the liver's work which showed it to be under high nervous excitement. Your mouth became dry through a cessation of the salivary discharge. Your lachrymal duct was parched, and your eye grew to have an arid look in addition to the dullness produced by opiate contraction of the pupil.
For example, when the salivary glands need to secrete saliva, and the stomach to pour out gastric juice, the arteries that supply these organs are dilated, and so the parts are flushed with an extra supply of blood, and thus are aroused to greater activity.
These pass away too rapidly from the stomach, are swallowed too hastily, and violate a natural law in superseding the necessity of mastication, and a proper admixture with the salivary secretion.
This subject is very intricate. It would appear, that by certain morbid actions of the salivary glands of the mad dog, a peculiar kind of saliva is produced; which being instilled into a wound of another animal stimulates the cutaneous or mucous glands into morbid actions, but which are ineffectual in respect to the production of a similar contagious material; but the salivary glands by irritative sympathy are thrown into similar action, and produce an infectious saliva similar to that instilled into the wound.
It is to no purpose, that you dip your fingers into the briny flood, and endeavour to cool your lips and tongue by taking it into the mouth. To swallow it is still worse. You might as well think to allay thirst by drinking liquid fire. The momentary moistening of the mouth and tongue is succeeded by an almost instantaneous parching of the salivary glands, which only glow with redoubled ardour.
After a spell of some hours, it has disappeared within a solid shell. This is white as snow and highly porous; it might almost be a globule of whipped albumen. Thus, to stick together the sand in its pill-shaped nest, the larva employs a frothy albuminous substance. Let us now dissect the builder. Around the oesophagus, which is fairly long and soft, are no salivary glands, no silk-tubes.
Before the man-beast's appearance the cub had spent three quarters of his time in eating, but since yesterday morning he had not swallowed so much as a bug. He was completely empty, and the object he saw hanging to the bush set every salivary gland in his mouth working. It was a wasp's nest.
Yet more, for the sake of hypothesis, we will assume it proved. What follows? Are we to get no more sugar while we smoke? By no means. Hard by the stomach lies the pancreas, an organ so similar in structure to the salivary glands, that even so minute an observer as Kölliker does not think it requisite to give it a separate description.
This would give the teeth and salivary glands an opportunity to come up to the work which God in nature assigned them. They will probably lose more time in this way, than they can possibly save by eating rapidly. The idea of preventing conversation about what we eat is also idle, though Dr. Franklin and many other wise men, thought otherwise.
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