142 THE BREEDS OF LIVE-STOCK 
durance, carrying riders long journeys, day after day, in 
a scorching sun, with little feed or water. He can carry 
very heavy weights on his back. When hitched to the 
carriage, he makes a gentle, attractive driving horse. 
167. Use for crossing. — The importance of the Arab 
for cross-breeding purposes is well known. He has entered 
into the development of many of our present-day breeds, — 
trotting, running, saddle, coach and draft, — and has im- 
parted his endurance, quality and intelligence wherever 
used. That he is still valued for this purpose is evidenced 
by the fact that in certain European countries Arab studs 
are officially maintained for breeding purposes. One of 
the most noticeable differences between our best types 
of to-day, especially in America, and the Arab horse, is the 
flat and contracted sides of our horses compared with the 
round, barrel-shaped ribs of the Arabian and the narrow 
openings of the Jaw-bones of our horses compared with 
the wide openings of the jaw-bones of the Arab horse. 
Another very noticeable difference is the dropping off 
below the knee of our American horses compared with 
the big, flat bone below the knee of the Arab horse. 
The finer quality of bone that is transmitted by the 
Arab horse in crossing is one of his greatest values. 
Beyond this, perhaps, is his ability to stamp evenness 
and beauty of disposition on his offspring, a quality 
desired in all horses, especially in cavalry horses. 
The very close relation that has long existed between 
the Arab horse and his master, has produced in him a 
docility and intelligence that is seldom found in horses 
of other breeds. The prepotency of the Arab is due to 
the fact that in his veins flows only pure blood, with no 
admixture of cold blood, a fact that cannot be said of any 
other breed. 
