224 
THE AMERICAN FAUNA AND ITS ORIGIN. 
regards toe development or structure, the series would present 
differentiation backwards , which is incompatible with Evolution. 
The genus Equus is found in the Upper Siwalik beds, from which 
circumstance it appears that Equus existed in the Upper Miocene, 
in which case Equus existed before forms supposed by Evolutionists 
to be its ancestors. In the three “ horse-like forms ” — Mesohippus, 
Miohippus, Protohippus, each genus is less modified in some respect 
than its predecessor. This has been pointed out by Scott ;* from 
which it results that the earlier forms resemble Equus more than 
they resemble their immediate successors in the chronological series, 
another fact incompatible with Evolution. It is worth remarking 
also that later horse-like forms are not invariably larger than those 
preceding them ; for Epihippusj in the Upper Eocene, is much 
smaller than Protorohippusf found in the Middle Eocene. And, 
with regard to Phenacodus, if account be taken of the long period 
from Phenacodus to Equus, the time necessary to derive this form 
from a non-ungulate form is so enormous as to be altogether 
inadmissible. 
Mr. W. Woods Smyth. — I am thankful to Professor Logan 
Lobley for his paper — for its immense and widely gathered 
information and for its interesting subject matter. I regret to have 
to show good reason for refusing to accept his closing views upon 
the earth — upon land and ocean areas. In these Professor Lobley 
follows Lord Kelvin’s idea that the earth originally became 
consolidated from centre to surface— Kelvin’s constantior status. At 
the Cambridge Meeting of the British Association, 1904, the 
venerable geologist the Eev. Osmond Fisher, submitted satisfactory 
calculations to show that the folding convolutions and contortions 
of the earth rendered Lord Kelvin’s theory of a primeval solid 
earth an impossibility. 
The Author briefly replied. 
* Transactions of the American Philosophical Society (N.S.), 18, 1896, 
pp. 119, 120. 
t These forms are in the American Museum Series. 
