Abstract
In the year 1916 and 1917 the author published the opinion, that the sweat glands are innervated not only by the sympathic nerve, but also by the parasympathic and the function of those two nerves upon the glands varies with the kinds of animals, for instance, in men, cattle and cats the glands are influenced to secrete by the parasympathic nerve stimulation, while in the sheep by the sympathic, but never by the parasympathic, on the other hand, in the horse as well by the sympathic as by the parasympathic in a remarkable degree. After this discovery the author has made the following paradoxical experiment: - If a large quantity of the well-known strong anidrotica "atropin" is injected intravenously to a horse, a remarkable excitement with abundant sweating will always be observed. But if, in this case, a certain quantity of chloralhydrate will be given per rectum, so as to calm the animal, then the sweating will be influenced to cease. If is much more curious that, by the intravenous injection of the diaphoretica "pilocarpin", the sweating caused by the injection of atropin, can be stopped immediately, because the pilocarpin subsides the excitement by atropin. In connection with the above mentioned work, the author has studied the histological structure of the sweat glands in various mammals and has found that in man, horse, cat, sheep, wild boar, ape, pig, mouse, white rat and rat they are coiled gland, that in the cattle, dog and goat they are bag-form gland, and that the guinea pig, rabbit and bear have no gland, so far as the author researched.
The attached figures illustrate the coiled gland of ape and the bag-form gland of dog.
