Effluvium

“ Sometimes it happens, that it is no longer the effluvium which is perceived, but the whole hand itself becomes phosphorescent. Rays come and go like gleams on the back of the hands, or on the fingers, and sometimes, but very rarely, on the face or body of the sitters. These phosphorescences and the digital effluvia appear to me to belong to the same order of phenomena. Frequently, they are but fleeting gleams seen at the finger-tips, when the hands are resting on the table. ”

“ An effluvium exhales from amber and is emitted by rubbing: pearls, carnelian, agate, jasper, chalcedony, coral, metals, and other substances of that kind, when they are rubbed, produce no effect. Is there not also something which is exhaled from them by heat and attrition? Most truly; but from grosser bodies more blended with the earthy nature, that which is exhaled is gross and spent; for even towards very many electricks, if they are rubbed * too hard, there is produced but a weak attraction of bodies, or none at all; the attraction is best when the rubbing has been gentle and very quick ”

“ Since air which has passed through the lungs is the same thing with air tainted with animal putrefaction, it is probable that one use of the lungs is to carry off a putrid effluvium, without which, perhaps, a living body might putrefy as soon as a dead one.
When a mouse putrefies in any given quantity of air, the bulk of it is generally increased for a few days ”

“ In every infusorium there is triplicity of the poles, or properly speaking, of the processes. Each one maintains itself by the nutritive, digestive, and respiratory process, or what amounts to the same, the infusorial globule of mucus assumes a figure, its peculiar fluidity is formed in its interior, and it becomes oxydized. As is well known, no infusorium can live without moisture, and none if the access of air having been prevented, or the water boiled, it is freed from the air and the Earthy. ”

“ The last instance of supposed contagion of the yellow fever is said to arise from the effluvia of a putrid body that has died of that disease. The effluvia in this case act either as the putrified excretions mentioned under the first head, or as an exciting cause upon miasmata, previously received into the system. A dead body, in a state of putrefaction from any other disease, would produce, under the same circumstances of season and predisposition, the same kind and degrees of fever. ”

“ It is desirable to detach the flue at every point from the floor of the house by means of piers, to allow of a circulation of air around the whole exterior of the flue, and promote a consequent equable distribution of the heat. A small flue of four-inch or six-inch drain-pipes, well cemented at the joints, may suffice for a small house, but what we should consider a good flue would be two feet high and one foot wide, the sides of brickwork, and the top and bottom red foot tiles or slates. ”

“ When the external skin is the seat of inflammation, and produces sensitive irritated fever, no collection of matter is formed, as when a phlegmon is situated in the cellular membrane beneath the skin; but the cuticle rises as beneath a blister-plaster, and becomes ruptured; and a yellow material oozes out, and becomes inspissated, and lies upon its surface; as is seen in this kind of erysipelas, and in the confluent small-pox; or if the new vessels are reabsorbed the cuticle peels off in scales. ”

“ The point of rupture is important, but where so many alveoli are involved, disturbance of continuity will occur, occasionally in such position that the result will be the escape of air into the interstitial tissues. [7] There is ample evidence that this happens. Indeed, among the clinical manifestations of the disease, interstitial emphysema of the lung spreading through the fascial planes to the subcutaneous tissues of neck and thorax is well known; the phenomenon is more frequent and extensive in influenza than in any other disease (8, 17, 52, 143) . ”

“ For example, if light falls from one side upon a vessel full of water containing unicellular green algae, according to the intensity of the light these organisms swim either towards the illuminated side, where they form a compact mass on the edge of the vessel, or away from it, to cluster on the opposite edge. In the same way infusoria in water are observed to hasten towards or to flee from certain chemical substances, and leukocytes in our bodies act in the same manner towards the metabolic products of pus-forming bacteria which have penetrated into an open wound. ”

“ Are there, in point of fact, effluvia similar to what we call odour, effluvia of extreme subtlety, absolutely imperceptible to ourselves and yet capable of impressing a sense of smell better-endowed than ours? There is a very simple experiment to be made. It is a question of masking those effluvia, of stifling them under a powerful and persistent odour, which masters the olfactory [263] sense entirely. The too-strong scent will neutralize the very faint one. ”

“ When any secreted fluid is produced in an unusual quantity, and at the same time the power of absorption is increased in equal proportion, not only the heat of the gland becomes more intense, but the secreted fluid becomes thicker and milder, its thinner and saline parts being re-absorbed: and these are distinguishable both by their greater consistence, and by their heat, from the fluids, which are effused by the retrograde motions of the lymphatics; as is observable towards the termination of gonorrhœa, catarrh, chincough, and in those ulcers, which are said to abound with laudable pus. ”

“ If the beginnings or absorbent mouths of the venous system remain torpid, petechiæ or vibices are produced in fevers, similar to those which are seen in scurvy without fever. If the skin was frequently moistened for an hour, and at the same time exposed to the common air, or to oxygen gas, it might contribute to turn the black colour of these points of extravasated blood into scarlet, and thus by increasing its stimulus facilitate its reabsorption? For oxygen gas penetrates moist animal membranes though not dry ones, as in the lungs during respiration. ”

“ True, said I, but methinks there is some small track to the cause of this effect, if you come to the effluvia of bodies. For smell, voice, breath, and the like, are effluvia from animal bodies, and material parts that move the senses, which are wrought upon by their impulse. Now it is very likely that such effluvia must continually part from animals, by reason of their heat and motion; for by that the spirits are agitated, and the body, being struck by those, must continually send forth effluvia. ”

“ In this case, also, the air has never failed to be restored; but then it might be suspected that the melioration was produced by the addition of some more wholesome ingredient. As these agitations were made in jars with wide mouths, and in a trough which had a large surface exposed to the common air, I take it for granted that the noxious effluvia, whatever they be, were first imbibed by the water, and thereby transmitted to the common atmosphere. In some cases this was sufficiently indicated by the disagreeable smell which attended the operation. ”

“ It is in the most general sense that protoplasm is “fluid.” As Graham said (of colloid matter in general) , “its softness partakes of fluidity, and enables the colloid to become a vehicle for liquid diffusion, like water itself264.” When we can deal with protoplasm in sufficient quantity we see it flow; particles move freely through it, air-bubbles and liquid droplets shew round or spherical within it; and we shall have much to say about other phenomena manifested by its own surface, which are those especially char­ac­ter­is­tic of liquids. ”

“ The first symptoms indicative of the approaching efflux of blood occur on the Thursday, generally about noon. On each of the pink surfaces already described on the hands and feet, a vesicle is seen to commence, and to rise little by little. When completely developed, it is a rounded hemispherical prominence on the surface of the skin; its base is the same size as the pink surface on which it rests—that is, nearly an inch long, by a little more than half an inch broad. This vesicle is formed by the epidermis detached from the dermis, and elevated as a half sphere by serous liquid within. ”

“ Ayre remarks, that all the phenomena belonging to cases of watery effusion, met with under one or other of the forms of inflammation, are common to those of dropsy. Thus the fluid, discharged under the cuticle in erysipelas or in inflammation induced by heat or a blister, or in cases of pemphigus, is a secretion, and resembles in all respects the fluid found in dropsy. In some cases of acknowledged inflammation, the fluid effused is found to vary greatly in its degree of tenuity, so as to be sometimes of quite a viscid nature. ”

“ Other of Boyle’s fruitful principles (I am separating them out from amidst much other matter not specially related to influenza) are these:
“It is possible that these effluvia may be, in their own nature, either innocent enough, or at least not considerably hurtful, and yet may become very noxious if they chance to find the air already imbued with certain corpuscles fit to associate with them.”
Again, the effluvia sent up into the air may pass by certain places without causing an epidemic, because these “are not inhabited enough to make their ill qualities taken notice of ”

“ The right cavities of the heart were filled with fluid blood. The sinuses of the dura mater contained less blood than usual, and the brain was pale. The medical man reporting the case considered that the emphysema was the cause of death, by interfering with expiration, and thus detaining the vapour; and it must be admitted that, if the vapour were not sufficiently diluted with air, the emphysema might increase the danger. I have, however, administered chloroform in several cases in which emphysema existed to an extreme degree, without any ill effects ”

“ When a change is thereby effected, and no pus falls into the part, you may accomplish the cure by means of the plaster from chalcitis, or some of those plasters of a similar nature, which apply to defluxions; but clean wool soaked in austere wine is to be put externally to the medicine. In this manner you may cure phlegmons from defluxion. But such as are occasioned by any external cause will not be injured by moistening and heating applications, and if necessity require, you may scarify them with advantage. ”

“ In all these fevers the part inflamed is called a phlegmon, and by its violent actions excites so much pain, that is, so much of the sensorial power of sensation, as to produce more violent actions, and inflammation, throughout the whole system. Whence great heat from the excited capillaries of the skin, large and quick pulsations of the heart, full and hard arteries, with great universal secretions and absorptions. These perpetually continue, though with exacerbations and remissions; which seem to be governed by solar or lunar influence. ”

“ Where this is the case, the length of the main flue is to be considered as extending only from the bottom to the point where the upper flue joins it, and where the lower flue will receive air from the upper side flue. If a smoky flue can not be increased in length, either by closing an upper flue or lengthening the chimney, the fire-place must be contracted so that all the air near the fire will be heated and thus pressed upward. ”

“ In such cases, an eruption of similar vesicles takes place on the hands and arms, not without much swelling and inflammation, and occasionally with fever and disturbance of the health for some days. It has never been known to prove fatal when thus communicated, or to have left any unpleasant effects behind 15it, except a few indented marks in the situation occupied by the pustules. It is not communicable, like small-pox in the human subject, by the effluvia ”

“ The flux is to the right rather than to the left because the veins there are more capacious and numerous than on the left side, for on the one side they spring from the liver, and on the other from the spleen. The defluxion and melting down take place most especially in the case of children in whom the head is heated either by the sun or by fire, or if the brain suddenly contract a rigor, and then the phlegm is excreted. ”

“ Again, burning* sulphur and hard wax, made from shell-lac, when aflame do not allure; for heat from friction resolves bodies into effluvia, which flame consumes away. For it is impossible for solid electricks to be resolved into their own true effluvia otherwise than by attrition, save in the case of certain substances which by reason of innate vigour emit effluvia constantly. They are rubbed with bodies which do not befoul their surface, and which produce a polish, as pretty stiff silk or a rough wool rag which is as little soiled as possible, or the dry palm. ”

“ If the liniment is applied to the eruption at a sufficiently early stage, viz., when the eruption is becoming vesicular, the carbolised oil on the surface of the eruption, and the gaseous carbolic acid, between the skin and the cotton and in the interstices of the cotton, prevent the microbes of the atmosphere from coming into direct contact with the {277} epidermis, and subsequently with the contents of the vesicle, the result of which is the contents of the vesicle do not become pustular and purulent; and the eruption dries up without ulceration. ”