Experiment 4.
To the tongue of a young and rather less than half-grown cat, a drop of the oil of tobacco was applied. In fifteen seconds the ears were thrown into rapid and convulsive motions,—thirty seconds fruitless attempts to vomit. In one minute convulsive respiration; the animal fell upon the side. In four minutes and twenty seconds violent convulsions. In five minutes the breathing and the heart's motion had ceased. There was no evacuation by the mouth or otherwise. The vital powers had been too suddenly and too far reduced to admit of a reaction. The tremors, which followed death, subsided first in the superior extremities, and in five minutes ceased altogether. The muscles were perfectly flaccid.