Lu OKIGIN OF SPECIES. 
it has been strongly asserted, exhibits the structures 
known to anatomists as the posterior lobe, the pos- 
terior cornu of the lateral ventricle, and the hippo- 
campus minor.” (102) 
These propositions, though the first has appear- 
ances in its favor, turn out to be unsupported ‘by a 
single anatomical preparation,” and ‘‘it is precisely 
these structures which are the most marked cerebral 
characters common to man with the apes.” 
The learned Professor, after tracing the progress 
of the brain through fish, reptile and bird, and as it 
is found in the lowest marsupials, such as the Opos- 
sum, points out an apparently new structure con- 
necting together the cerebral hemisphere among pla- 
cental mammals. He also notices the striking ad- 
vance from the evenly rounded brain of the lower 
placental mammals, to the tortuous cerebral foldings 
of the Elephant, the highest apes, and man. These 
comparisons also disclose some curious facts : as that 
the lowest man’s skull has nearly twice the capacity 
of that of the Gorilla ; yet, this difference is not so 
- great as that between the lowest ape and the Gorilla 
or Chimpanzee—nor so great as that between the 
lowest and the highest of the human species. 
It follows from this remarkable linking together 
of created things, and the order of succession frem 
lowest to highest, that there is a necessary connec- 
tion between them :—that the creation of the prior 
thing is necessary to that which is to follow. No- 
