Geology and Mineralogy. 71 
gyri were arranged as stated. he brain casts of the Carnivora 
as in th im BO 
ticeable feature of the cerebellum of the casts examined is the 
prominent middle lobe. Existing mammals of the lower orders 
possess a similarly configured cerebellum. In man the middle — 
lobe is reduced to a minimum, the lateral lobes epg rior, Se 
ter part of the cerebellum. It ° 
been a decrease in the size of the middle lobe and a concomit- — 
