212 APPENDIX. 



restored to America, where it reigned with scarcely a rival for nearly half a century. In Peale's 

 Museum at Philadelphia, it occupied a prominent place, until, in the year 1849 or 50, it dis- 

 appeared ; and, since then, there is no authentic account of its history. 



In the summer of 1851, being in Paris, I was told by M. Laurillard, of the Jardin des Plantes, 

 that a Mastodon skeleton had been offered for sale in that city; but Professor De Blainville 

 found it in so disordered a state, that he would not advise its purchase. Soon after, it dis- 

 appeared, and he knew not in what place it then reposed. 



This skeleton was originally imperfect. It wanted a considerable part of the head, some 

 of the vertebra? and ribs. Many of the bones of the extremities were represented in wood. 



The upper figure, on the right hand, is that of the Baltimore skeleton, exhumed also by Mr. 

 Peale in the year following the former, and from the same morasses in Orange County. It 

 was very ingeniously articulated, but much of it was wood and plaster. Some years since, 

 it was removed from the Baltimore Collection, and remained in a disarticulated state till I saw 

 and purchased it in 1849. For £he advantage of examining the separate bones, it has been 

 preserved in this condition. The bones of this skeleton are large, and exhibit the marks of 

 extreme age. 



The lower figure, on the right hand, represents the Missourium, so called, taken by Dr. Koch 

 to England in 1843, re-formed and set up in the British Museum under the direction of Professor 

 Owen. Although imperfect in many respects, it has been of great use as the only representative 

 of the Mastodon frame in Europe. 



The lower figure, on the left hand, is that of the Cambridge skeleton. The drawing was 

 made previous to its re-articulation : it now presents a very different appearance, and has quite 

 an imposing aspect. The bones of the feet are supplied ; the others are tolerably perfect. 



The fifth, placed in the centre, is the figure of the skeleton we have described. 



PLATE H. 



This is intended to show the earliest stage of dentition in the Mastodon Giganteus. 

 It is taken from a specimen in the Cambridge Collection, and confirmed by the cast of one 

 belonging to the American Philosophical Society, which exhibits nearly the same teeth, and 

 the two mandibular sockets of the tetracaulodon tusks. This plate is interesting, because it 

 shows the first or milk teeth, the absence of the vertical premolar in the lower jaw, and the 

 existence of both sockets of the mandibular or tetracaulodon tusks in a young subject. 



The upper figure in this plate represents the earliest state of the teeth in the lower jaw of 

 the Calf Mastodon. Three teeth are here seen on each side: first, the small deciduous two- 

 xidged milk molar ; second, the larger two-ridged deciduous molar ; third, the first and smallest 



