68 PROCEEDINGS OF THE AMERICAN ACADEMY 



Dr. J. Wyman exhibited the lower jaw of a mastodon from 

 South America, brought from Chili by Lieutenant Gilliss. 

 This animal ranged the whole of the continent, from 5° north 

 latitude to 40° south. It has been found at great elevations 

 in 34° south, at the height of 1,400 feet above the level of 

 the sea ; in duito, Humboldt found it at the height of 7,200 

 feet ; Mr. Darwin says it has appeared on the limits of per- 

 petual snow. In these cases the land has been elevated since 

 the deposition of the remains. 



The number of species found here is doubtful; Cuvier 

 made three, M. augustidejis, M. Humboldtii, and M. Andiiim, 

 of the last two one being small and the other large. De 

 Blainville maintained that there was only a single species. 

 It is not reasonable that M. augustidens should be found 

 here ; from the figures given by Falconer and others. Dr. 

 Wyman thinks there are two species ; all the teeth found are 

 referable to two sizes, one about six inches and a half long, 

 the other from nine to ten inches. The jaw he exhibited 

 confirmed the view that there are two species, one of which 

 is of small size ; it was of small size, yet was that of an 

 adult animal, as shown by the sixth molar. He had also an- 

 other tooth differing so much from the others that perhaps 

 a third species might be made out. It would not be strange 

 if two species were found here, as in India, according to Fal- 

 coner, eight or ten species are found in a limited district. 



Dr. C. T. Jackson exhibited a branch of the Mistletoe, with 

 the flowers, obtained from an oak-tree of North Carolina. 



Dr. C. T. Jackson gave some account of the copper and 

 gold mines of North Carolina ; some of the copper mines are 

 old gold mines which were worked till they became unprofit- 

 able from the presence of water ; now, improved machinery 

 permits them to be worked with profit. The principal cop- 

 per ores are the yellow and gray sulphurets. 



He described in some detail the coal region on Deep River, 

 North Carolina ; the coal is very bituminous, containing little 

 sulphur, and is excellent for the manufacture of gas. He thinks 



