The general effects of long fasting, however, are highly injurious when not destructive. They are chiefly feelings of great debility, fever, delirium, violent passion alternating with deep despondency. In general the temperature of the body falls several degrees, although Currie observed the contrary in a patient who died of inanition in consequence of a stricture of the oesophagus; the respiration becomes fetid, the secretion of the kidneys acrid and burning, and according to Magendie and Collard bloody, and the stomach is found contracted after death. Experiments on the duration of life in man and animals deprived of food, show that the warm-blooded animals are best able to support the want of food. But a phenomenon still more wonderful is the faculty that animals have been known to possess of living when deprived of atmospheric support. A hog, weighing about one hundred and sixty pounds, was buried in his sty under thirty feet of the chalk of Dover cliff for one hundred and sixty days. When dug out, it weighed but forty pounds, and was extremely emaciated, but clean, and white. The animal had nibbled the wood of the sty, and eaten some loose chalk. Lizards, especially the Newt, have been found embedded in chalk-rock, apparently dead, but have reassumed living action on exposure to the atmosphere. On their detection in this state, the mouth is usually closed with a glutinous substance so tenaciously, that they are often suffocated in their efforts to extricate themselves from confinement. Toads have been repeatedly discovered in a similar situation, embedded in blocks of stone, or in the very heart of trees. Dr. Edwards, a learned physiologist in Paris, has ascertained that blocks of mortar and heaps of sand possess sufficient porosity to admit enough air to support the life of reptiles; but they all perish if immersed in water or mercury, when surrounded by an exhausting receiver. The duration of existence of the amphibials of the Batrachian family, when plunged in water, depends in a great measure on its temperature. They die speedily if the water be lower than 32 deg. Fahrenheit, or higher than 108 deg.; and the longest duration of life is under 32 deg.