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The scalp secretes an oil that is necessary to the health of the hair but if this and the perspiration are allowed to accumulate the hair has an offensive odor. So it is with the female organs, the parts must be bathed carefully every day. I have been surprised in the past to find how many intelligent women neglect these parts.
Inside this snail's gut there is a protozoan that lives off the snail's ingested food. Yet this little organism is not a parasite, as you might think at first, but a symbiote. It takes food from the snail, but at the same time it secretes a chemical that aids the snail's digestion of the food. Do you get the picture? All these life forms exist in a complicated interdependence."
Hence it would appear, that these kinds of contagion are propagated not by means of the circulation, but by sympathy of distant parts with each other; since if a distant part, as the palate, should be excited by sensitive association into the same kind of motions, as the parts originally affected by the contact of infectious matter; that distant part will produce the same kind of infectious matter; for every secretion from the blood is formed from it by the peculiar motions of the fine extremities of the gland, which secretes it; the various secreted fluids, as the bile, saliva, gastric juice, not previously existing, as such, in the blood-vessels.
The organ which secretes the substance of the nest consists of cylindrical tubes, having a curious tangled appearance, which are arranged in two groups of twenty each. They are all filled with a colourless, viscous fluid, which is precisely similar in appearance in all parts of the organ. There is no indication of any organ or secretion which could produce a chalky coloration.
At the base of each pair of leaflets, on the mid-rib, is a crater-formed gland, which, when the leaves are young, secretes a honey-like liquid. Of this the ants are very fond; and they are constantly running about from one gland to another to sip up the honey as it is secreted. But this is not all; there is a still more wonderful provision of more solid food.
In the form of cyclic insanity known as the manic-depressive psychosis, mania alternates with depression, as if the personality were dominated wholly in turn by one or the other of these two instincts of the ego. There is a good deal of evidence that behind them is a corresponding fluctuation in the amount the thyroid secretes into the blood.
Equally absurd, and destitute of foundation, in fact, is the objection frequently advanced that the washing of the interior surface of the colon is injurious; as it washes away the fluid that Nature secretes for the purpose of lubrication. Where, in the name of common sense, do they get their authority for such a statement?
Cabanis may have made use of crude and misleading phraseology when he said that the brain secretes thought as the liver secretes bile; but the conception which that much-abused phrase embodies is, nevertheless, far more consistent with fact than the popular notion that the mind is a metaphysical entity seated in the head, but as independent of the brain as a telegraph operator is of his instrument.
The tree-frog, like all its fellows, buries itself in the mud during winter, and remains torpid. This lethargy, which in glacial climates has the effect of preserving it from hunger, must in Mexico have some other cause, for in the latter country it can find food all the year round. The skin of the tree-frog secretes a poisonous matter."
The name of the brig on which they embark is the Grampus, which is starting for a trading voyage in the South Pacific Ocean. Young Barnard secretes Pym in the hold of the brig, to remain hidden until so far from land as to make a return of the runaway impracticable.
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