IO THE AMERICAN MUSEUM JOURNAL 
specimens, fortunately of nearly equal size, were found, and a 
restoration of Uintatherium now seems assured. One of these 
skeletons was found in a very interesting and unusual position. 
The animal had evidently been mired in the clay in which the 
bones were found imbedded, and had died while the body was 
in an upright position. When excavated, the limbs were found 
extending straight down in a nearly natural pose, the hip was 
in place, but the skull, neck and most of the back had been 
weathered away. 
Among the other specimens obtained during the past season 
were remains of rodents, carnivores, insectivores, monkeys and 
the primitive Horse Orolippus. The collections of the past two 
seasons are especially rich in specimens of these smaller forms 
and supplement admirably the material obtained from the same 
beds by the earlier expeditions. 
Mr. Albert Thomson spent about four months collecting in 
the Big Badlands of South Dakota. This is the fourth expedi- 
tion sent by the Museum to the famous Oligocene deposit. 
The locality has probably been more productive of fossil mam- 
mal remains than any other equal area in the world, and notwith- 
standing the numerous collections made there, the area appears 
not to have been exhausted. The expedition of 1904 secured 
a collection comprising nearly one hundred specimens and in- 
cluded at least two new genera and several new species. The 
new genera are a small ruminant and a rodent, intermediate in 
skull structure between the beaver and the squirrels. The col- 
lection also included two fine skulls of the large Perissodactyl, 
Titanotherium, and several fine skulls and jaws of the smaller 
rhinoceroses, as well as two turtles new to science, one a der- 
matemyd, the other a species of Testudo. 
Mr. Barnum Brown conducted four expeditions during the 
summer of 1904. The first explored the Fort Pierre beds of 
South Dakota near Edgemont, where a unique collection of 
plesiosaur remains were obtained which will enable the Museum 
to place on exhibition the restored skeleton of this interesting 
sea serpent. There are two skulls with jaws in this collection 
and one specimen includes the skull, jaws and about 15 feet of 
neck, one paddle and part of body. 
