_Typhoid fever_ never affects the atmosphere, but it does affect water, milk, ice, and meat. The eggs of a parasite from dogs, and hence more or less infecting all waters to which dogs have access, appear to have an unequaled facility of passage to all parts of the human system.
As for _surgical operations_, in a German paper are particulars of a case in which the eye of a man was thrust out of its socket by a parasite cyst in the rear, discovered by surgical exploration and extracted. From a 5-year old boy an injured kidney was removed successfully and the patient recovered. The bridge of the nose was completely restored by using the breast-bone of a chicken and stretching the flesh of the old nose over it.
Even the part of a destroyed nerve of the arm was restored by the substitution of a part of a sound nerve from an amputated limb, so that the continuity was restored and sensation returned in 36 hours! Prematurely-born children are kept in an artificial mother, which consists of a glass case warmed by bowls of water. A new opiate has been discovered called the sulsonal. It produces sleep in nervous people and those affected with heart disease, but not in healthy subjects. The idea that sufferers from heart disease should avoid physical exertion has been dispelled by a noted physiologist who has successfully employed regulated exercise.
Brown-Séquard has brought out his great Vital Fluid. He is reported as saying: "I never made use of the word 'elixir,' still less of the words 'elixir of life.' These are all expressions or inventions of sensational newspapers. If quacks or ignorant men in America have killed people, as stated by the New York papers, they would have avoided committing those murders had they paid the least attention to the most elementary rules as regards the subcutaneous injection of animal substances. Injections of animal matter have no danger, as a rule, unless the substances begin to be decomposed. When this condition of things exists, no good can be obtained, and there is grave danger of inflammation, abscesses, and even death."
"Professor Brown-Séquard is reported to have lately informed the French Academy of Sciences that, by condensing the watery vapor coming from the human lungs, he obtained a poisonous liquid capable of producing almost immediate death. The poison is an alkaloid (organic), and not a microbe or series of microbes. He injected this liquid under the skin of a rabbit and the effect was speedily mortal without convulsions. Dr. Séquard said it was fully proved that respired air contains a volatile element far more dangerous than the carbonic acid which is one of its constituents, and that the human breath contains a highly poisonous agent. This startling fact should be borne in mind by the occupants of crowded horse-cars and ill-ventilated apartments."