34 THE BREEDS OF LIVE-STOCK 
28. Organizations and records. — In 1877, the Ameri- 
can Clydesdale Horse Association was formed to look 
after the interest of this breed in America, and nearly 
19,000 registrations have been entered. The Scotch 
Clydesdale Horse Society was organized in 1878. Each 
of these associations issues a stud-book, the American 
Association having published eighteen volumes. The 
headquarters of the American Association are in the 
Union Stock Yards, Chicago. 
SHrE Horse. Fig. 6. 
By John A. Craig 
29. The Shire horse is recognized as one of the leading 
breeds of draft horses. The best type is specially adapted 
for breeding the heaviest class of draft horses, suited for 
slow work, when weight and strength are prime essentials. 
For hauling large loads on lorries through crowded city 
streets, without jerking but steadily progressing, weight 
and strength are the main factors, and it is because of the 
possession of these qualities that the Shire maintains its 
position as a draft horse. A medium-weight horse may 
succeed in pulling more than one of heavier weight if 
permitted to rush at it; but to start a load steadily 
and keep it moving slowly, repeating this frequently, 
as is done on crowded streets, weight must supplement 
strength. Herein lies the reason for the popularity of 
the Shire for drayage purposes in England, where it 
originated. 
30. History in Great Britain. — The Shire is considered 
to be descended from the old war horse of Great Britain 
and has been referred to as the War horse and the Great 
