The West Shore. No. 4. JS&JE'S;'' Portland, Oregon, April, 1881. Nrw.i..j,i RESULTS OF VIVISECTION. INTERESTING EXPERIMENTS. PROF. MOTT SHOWS HOW PEOPLE ARE TAKING POISON IN THEIR DAILY FOOD A PROLIFIC SOURCE OK DYS PEPSIA SCIENTIFICALLY DEMON STRATEI). A series of highly interesting experi ments with dogs hnve been lately made by Prof. Mott; and in the Scientific American" of Feb. 7th a detailed ao count is given. The disclosures are so unpleasant and startling coming home, as they do, to every one that we be lieve they should be given the greatest publicity. The effort Dr. Mott is ma king to purify our articles of kitchen use should receive the support of every thinking man and woman. There has tacn too much indifference on this sub ject an indifference that has resulted in Americans earning the title of "a race of dyspeptics." Poison, year after year, is introduced into the stomach with a criminal disregard to consc epiences that is appalling. If every purveyor of domestic supplies will carefully consider the result of Dr. Mott's experiments, as detailed in the Scientific American, one of the greatest, if not the greatest, of these evils will be corrected. Dr. Mott says: "The introduction of alum in flour, for various purposes, has been a trick ot the baker for the past 100 years. Fortunately for society, its introduction is limited now to a few unscrupulous bakers. In England, France and Germany It is an offense, punishable by fine and imprisonment, to use alum in any connection with articles of food. It should be 10 in America." The Royal Making Powder Com pany of this city, a long-established cor poration, celebrated for the absolute purity of their goods, some time ago commenced a vigorous warfare against many of their competitors who were indulging in hurtful adulteration. The contest excited great interest in scientific circles, in which Prof. Angell, Dr. Mott and other leading lights took a very prominent part. The experiments of Dr. Mott are a result of this discussion, and go to prove conclusively that the most dangerous adulteration that a com munity has to guard against is alum in baking powder. In his paper the Doc tor says: "It was with difficulty I found a suitable place to conduct the experiments, so that the animals would not disturb the neighborhood; but, through the courtesy of the Commis sioners of the Dock Department, I se cured a shed on their premises, foot of Sixteenth street ami East river. This shed I had completely remodeled Into a suitable house, having the dimensions of about 16x14x1a feet. Sixteen stalls were made inside, having the dimen sions 3xixj feet. The bottom of each compartment was covered with straw; making a pleasant tad for the dogs. I then secured sixteen dogs from the Pound, which were all carefully ex amined to fcec if they were In a perfect state of health. None hut the strong, healthy dogs were selected. The breed, age, food, color and weight of every dog was carefully noted. Each dog was then confined to a stall and securely chained, and they all received a num ber, from 1 to 16 I commenced my ex periments on the 9th of September, and finished December 3d. My as sistant was with the dogs from morn ing until night, and never left the ani mals without first securely bolting and locking the dog-house. No stranger was allowed to enter the house unac companied cither by myself or my as sistant, and the dogs never received a mouthful of food or anything else from any one except from my assistant or myself. I will now detail the result of my experiments: "Dog No. 1. -II recti of dog, coach; age, 1 year; health, perfect 5 food, bread and crackers; color, spotted black and white; weight, 35 pounds; To this dog, on the morning of the oth of September, were given eight biscuits,! 8:ioo'clock. I The biscuits were made by myself, as follows: One quart sifted flour, ao tcaspoonfula alum baking powder, a k cupful water, 1 tablespoonful butter aa biscuits made, weighing ounces; time of baking, ao minutes. "At 11:30, just three hours and twenty minutes, the dog was taken very sick, vomiting profusely; his vim and brightness of eyo had departed, and he trembled considerably in his limbs." Experiments were then made upon three dogs, with biscuit containing only 10 tcaspoonfula of alum baking powder. The result indicated that some animals are more liable to yield to the effects of poisonous substances than others. When, on the other hand, three other dogs were fed with biscuits made with pure cream of tartar baking powder, no ill effects were experienced. They ate and ate with an evident relish, day after day, and even whined for more. It was next necessary to discover what effect alum has on the solvent power of tho gastric juice. In order to obtain some pure gastric Juice, a curious device was resorted to. Dr. Mott sent several dogs to Professor Arnold, Medical Department of the the University of New York, who in scrtcd a small metallic tule directly through the skin and into tho stomach of each one of them, when the dogs were in a perfectly healthy condition. Prof. Arnold sent to Dr. Mott some gastric Juice, which was produced by tickling the lining of the stomach of tho dogs with feather or glass rod, which caused the gastric Juice to flow out of the tuta Into a receptacle placed under neath the dog to receive it. Dr. Mott, aided by Prof. Schedler, then began some experiments with tho four sample of gastric juice which he had received from' Prof. Arnold, to dis cover the effect of the gastric juice In which alum had been dissolved upon fibrine, a white, very easily' digested sulwtance, having a basis of coagulated blood. Tho fibrine was Imperfectly digested, and the experiment were very important, a showing that alum can check the digestion of so easily digested a substance a fibrine. They indicate, therefore, how dangerous It la to Introduce these two salts Into our stomachs, if we do not wish to excite imligerUlon and dyspepsia. Further ex