76 
HAROLD’S DISCUSSIONS. 
tlie orohippos (first liorse). A little later we find the 
same animal with one of the toes on the front foot 
elevated on the leg above the foot, much reduced and 
useless; then another with the useless toe entirely 
gone. This animal is about as large as a sheep. Still 
later beds contain one that has only three toes on 
each foot, and the middle one larger and longer than 
the two side ones. There were also changes in the 
head and neck. More recent fossil skeletons show 
further modifications; the side toes become mere 
splints on the side of the leg, and the remaining 
iiaillike toe is a hoof like that of the present horse. 
The camel has been 
traced through a 
similar line of an¬ 
cestors. 
In the latter 
part of this period 
are found the ox, 
sheep, tiger, and 
other animals, now 
fiesh - eating, but 
then only partly so, 
as their teeth show. 
Near the low^er part 
of the Seine River 
the country is rich 
in fossil remains of 
the age. It seems 
to have been a large bay, in whose muddy banks the 
skeletons were safely buried for our discovery. The 
Fig. 45. — Ancestor of the modern 
rhinoceros. 
