No. 556] 



NOTES AND LITERATURE 



251 



Portions of the hind limb, arm, skull, ribs, ventral scutelke or 

 abdominal ribs and portions of about thirty vertebra 3 are briefly 

 described. The animal is compared with Compsognathus, to 

 which it is closely allied and the new generic and specific terms, 

 Podokesmirns hohjokcnsis, are proposed. The specimen has been 

 sent to Yale University .Museum, where it will be prepared and 

 further described by Dr. Lull. 



Osborn 17 has given a discussion of the "Crania of Tyranno- 

 saurus and Allosrntnis." illustrated with many beautiful figures, 

 photographs and drawings. The discussion of the osteology of 

 the skulls is based on the most recent nomenclature of the cranial 

 elements and the various specimens are figured from many points 

 of view, so that the reader gets an adequate notion of the appear- 

 ance of the skulls of these remarkable dinosaurs. The figures 

 (Plates III and IV) of the brain cavity, which is figured from 

 the dorsal side in Fig. 17. will be of great interest to the general 

 zoologist. 



the outer surface and foldings of the dura mater and is thus merely a 

 east of the outer envelope of the brain, which gives us little idea either 

 of the form or size of the brain itself. . . . The cast of Tyrannosaurus 



displaces 530 cubic centimeters of water. If the brain proper bore the 



This sized brain in a skull 50 inches in length would not indi- 

 cate a high degree of intelligence. 



Further on in Part II of the same memoir the same author dis- 

 cusses "Integument of the Iguanodont Dinosaur Trachodon." 

 based on a marvelously complete "mummy" discovered in the 

 Cretaceous of Converse County, Wyoming. The "mummy" and 

 the impressions of the skin are figured in several excellent halftone 

 plates, with explanatory line drawings. Osborn says of the skin : 



iberculate. The 



Although this bipedal dinosaur when standing erect attained a 

 ,T Memoirs of the American Museum, N. S., Vol. L pt. 1, 1912. 



