228 MEMOIRS OF THE CARNEGIE MUSEUM 
seum of Natural History in New York the back portions of two other skulls (Nos. 
545 and 694, Cat. Vert. Foss. A. M. N. H.). They both, according to Professor 
Osborn, represent individuals younger than the one used by him in making the 
restoration (No. 969), to which reference has been already made, and tend to throw 
light upon important points. 
Tae PosITIoN OF THE SKULL IN RELATION TO THE VERTEBRAL COLUMN. 
Professor Marsh pointed out in his description of the skull the very important 
fact that the occipital condyle “is placed nearly at right angles to the long axis of 
Fic. 1. Skull and anterior cervical vertebrie of Diplodocus Carnegiei Hatcher, as placed in the restoration at the 
British Museum (Natural History ). 
the skull.” (“Dinosaurs of North America,” p. 175.) In speaking of the brain 
he observes, J. c., p. 178, that “It differed from the brain of the other members of 
the Sauropoda, and from that of all other known reptiles, in its position, which was 
not parallel with the longer axis of the skull, as is usually the case, but inclined to 
