i. 
TROTTING FAMILIES. 
HE American trotting horse is derived from these 
sources : — 
The English thoroughbred.! 
The Norfolk trotter. 
The Arab and Barb. 
Certain pacers of mixed breeding. 
And just as the best running horses now extant in 
1 A thoroughbred is one all of whose ancestors, back to the 
eighteenth century, are recorded either in the English or in the 
American Stud Book for running horses. The American work is 
a continuation for this country of the English. The first volume 
of the English Stud Book was issued in 1808, and an annual volume 
of each book is published. 
A thoroughbred is, therefore, a horse of pure running stock. 
The origin of this stock, which is chiefly Oriental, will be found 
stated briefly at page 118. 
