Man and the Mastodon in Missouri. 343 
marrow, and no larger space for the brain than that for the 
spinal cord on the upper side of some of the vertebrae ; and by 
the amount of cement, which left little or nothing of the under 
surface in sight. 
(3) 
The Hydrargos or Hydrachen pamphlets le do not 
require any modification of the Hg that Dr. Koch had not 
been trained to scientific investigation 
But on this point we have the opposing assertion of Dr. Koch. 
hel in a foreign country, where he had to make himself 
opens his pamphlet of 1848 with the following 
taaobuots of himself to the public: 
“ Previous to my commencing this Treatise, I wish particularly 
to mention that I have not only devoted the greater part of m 
life to the theoretical study of Natural History, but have also 
made myself intimately acquainted with the practical part of it.” 
ey we are unable to set aside the facts presented in the 
ceding pages and the opinion to which they have led, and 
Siretoes feel forced to take this introductory paragraph differ- 
ently from what. the pret intended, and gather from it that 
Dr. Koch was a man of large pretensions. This same i North 
ort 
a aah forest of thorns ies thistles.” He also gives us his 
=A also the interior fire aod water to come into a fg Sesto te 
violent collision, which created a revolution, dst naturally 
Sought for vent, and siiaskire burst through the crust of the 
quivering earth, tore up countries and sank them in the sea.” 
i a be en ough to prove that these pages do not sustain his 
rge cl 
Holding: then, to the conclusion that Dr. Koch was quite 
