Sysonby. — Motion of the Back Bone. The back bone is slightly- 

 arched to help draw together the fore and hind limbs and feet, and 

 thus lengthen the stride and bring the back muscles into play. When 

 viewed from above, the back bone is also observed to be curved a little 

 to the right, owing to the forward position of the left hand side of the 

 pelvis and of the left hind limb; this also lengthens and gives power 

 to the stride as the back bone is straightened. 



THE DRAUGHT HORSE 



The horse of the Perchcron breed from which this movmt was made 

 was presented to the Museum by Mr. George Ehret. The mounting 

 was completed by Mr. S. H. Chubb in the laboratories of the Museum 

 in the year 1903, from his own photographs and studies supple- 

 mented by the famous works of Muybridgc. In direct contrast to the 

 skeleton of "Sysonby," this animal was mounted in order to show the 

 development of power and slow movement in the Perchcron breed. 



The skeleton has been so mounted as to show the position of the 

 bones when the animal is drawing a heavy load. The visitor will 

 imagine that the shoulders are thrust against a collar, upon which the 

 horse is pushing with all its energy. Note that the head and body are 



[U] 



