Most of the skeleton of a mastodon giganteus was found during the winter of 1851 and '52, three and a-half miles north of Natchez, Mississippi, in a better state of preservation than any we believe to have been discovered within the United States. They belong to Andrew Brown, Esq , of Natchez, to whom we are indebted for the following particulars, and who was at the spot shortly after the discovery of the bones, which were imbedded in a compact, blue clay, at the depth of eighteen or twenty feet. The contents of the stomach - found nearly entire between the ribs - presented a mass of imperfectly masticated twigs and leaves, belonging to species similar to those now growing in that vicinity. These contents crumbled to pieces soon after being exposed to the air, while portions of wood found among the other bones are still in a good state of preservation. While washing the dirt from the bones, the glutinous matter exuding from them, caused the fingers to stick together, after which Mr. Brown caused them to be removed to a remote room on his premises to dry; where the decay of their animal matter became so exceedingly offensive, that they had to be removed again to a distant out-building, where they remained at least a year, before they were free from their disagreeable odor.

Mr. B. says the scent coming from the building resembled that of an old slaughter house; or that of animals recently dead. Mr. B. has nearly the entire skeleton; portions of the big bones and part of the upper jaw are still wanting. He estimates the animal to have been about thirteen feet in height. Its tusks, found entire, are eight feet in length. S. B. Buckley.