effluvium far and wide; and although 25 days liave now gone by, and the flesh has become offensive, not a single Vulture appears to have observed it, though hundreds have passed over it, and some very near it, in search of their daily food. Although the Vultures did not discover this dainty mess, the dogs in the vicinity, who appeared to have better olfactory nerves, frequently visited the place, and gave us much trouble in the prosecution of our experiments.
2d, I now suggested an experiment which would enable us to test the inquiry whether the Vulture would be attracted to an object by the sight alone. A coarse painting on canvass was made, representing a sheep skinned and cut open. This proved very amusing;—no sooner was this picture placed on the ground, than the Vultures observed it, alighted near, walked over it, and some of them commenced tugging at the painting. They seemed much disappointed and surprised, and after having satisfied their curiosity, flew away. This experiment was repeated more than fifty times, with the same result. The painting was then placed within fifteen feet of the place where the offal was deposited; they came as usual, walked around it, but in no instance evinced the slightest symptoms of their having scented the offal which was so near him.
3d, The most offensive portions of the offal were now placed on the earth; these were covered over by a thin canvass cloth; on this were strewed several pieces of fresh beef The Vultures came, ate the flesh that was in sight, and although they were standing on a quantity beneath them, and although their bills were frequently within the eighth of an inch of this putrid matter, they did not discover it. We made a small rent in the canvass, and they at once discovered the flesh, and began to devour it. We drove them away, replaced the canvass with a piece that was entire; again they commenced eating the fresh pieces exliibited to their view, without discovering the hidden food they were trampling upon.
4th, The medical gentlemen who were present made a number of experiments to test the absurdity of a story, widely circulated in the United States, through the newspapers, that the eye of the Vulture, when perforated, and the sight extinguished, would in a few minutes be restored, in consequence of his placing his head under his wing, the down of which was said to renew his sight. The eyes were perforated; I need not add, that although they were refilled, and had the appearance of rotundity, yet the bird became blind, and that it was beyond the power of the healing
