160 ROY L. MOODIE 
completely preserved. The brain and ear are wholly unlike 
those of any modern fish and no attempt is made at a direct 
comparison. There are several unusual features about the Pale- 
ozoic brains, such as a single, median vagal lobe, the widely 
separated lateral lobes of the cerebellum, the large optic lobes 
and the curious condition of the olfactory bulb or tract. 
Among the dinosaurs all the available evidence points to a 
‘lumbar brain’ which was considerably in excess, in the mass of 
nervous tissue, of the cephalic brain. By this it is not intended 
to indicate that sensory functions were largely confined, to the 
lumbar region. 
The brain casts of Tertiary mammals are dural casts, and do 
not repeat the smaller features of the Cer These objects 
have been insufficiently studied. 
XII. AN ANNOTATED BIBLIOGRAPHY OF PAPERS ON FOSSIL BRAINS 
AND OTHER SENSORY STRUCTURES 
There are many descriptions of fossil-brains, especially mammalian, not 
listed in this place; but the chief papers are given which will serve as a basis for 
future students. + 
ANDREWS, C. W. 1897 Note on the cast of the brain ca#ity of Iguanodon. 
Ann. Mag. Natl. Hist., 6th Ser., vol. 19, pp. 585-591, pl. xvi, and 1 
text figure. See also: Seeley, H.G. 1880. Pop. Sci. Review, vol. 19, 
p. 48, pl. 2, fig. 2. Andrews gives excellent figures of the brain cast 
of this dinosaur, comparing it with American dinosaurs, especially 
Ceratosaurus. 
Buack, D. Davipson 1915 Notes on the endocranial casts of Okapia, Giraffa 
and Samotherium. Anat. Rec., vol. 9, no. 1, pp. 56-59. A preliminary 
report on an interesting study of the surface patterns of the brain of 
three related mammals, one of which is extinct. 
Brown, Barnum 1914 Brain casts of Anchiceratops and a Trachodont. In 
‘“‘Anchiceratops, a new genus of horned dinosaurs from the Edmonton 
Cretaceous of Alberta. With discussion of the origin of the ceratop- 
sian crest and the brain casts of Anchiceratops and Trachodon.”’ Bull. 
Amer. Mus. Natl. Hist., vol. 33, art. 33, pp. 539-548, pls. 35 and 37. 
Describes excellent brain casts and complete inner ear. 
Bruce, Apam T. 1883 Observations upon the brain casts of Tertiary mammals. 
Contribution from the E. M. Mus. Geol. and Arch. Princeton Coll. 
Bull. no. 3, pp. 36-45, with pl. 7. Discusses formation of brain casts. 
Figures and describes very carefully the brain casts of six genera of 
Tertiary mammals. His conclusions are worthy of note. 
