Note 29 — SUFFOCATION.

Mr. Coleman examined the lungs of a cat which had been drowned, by placing a ligature on the trachea, removing the lungs from the thorax, and then making an opening in the trachea under water, so as to collect the air which issued from the orifice; the whole quantity of air thus obtained, amounted only to half a drachm; yet the same lungs when inflated, required as much as two ounces of air, by measure, for their distention. Nor would the presence of water appear to be immediately fatal, when introduced into the lungs; Dr. Goodwyn poured two ounces of water into the lungs of a cat, through an opening made between the cartilages of the trachea; the animal had an immediate difficulty of breathing, and a feeble pulse, but lived several hours afterwards without much apparent inconvenience; it was at length strangled, and the water was found in the lungs. From which it would appear, that the admission of a certain portion of water, does not tend to hasten death. The author of this note was present at an experiment made by Mr. Brodie, in which he drowned a guinea pig, whose trachea had been previously perforated; so that in this case, no spasm of the glottis could arrest the ingress of the water into the pulmonary air cells; but this produced no modification of the usual symptoms; nor did it prevent the resuscitation of the animal, which was afterwards effected by the appropriate methods.