10 THE GREYHOUND. 



would require such an organisation of brain as would give him 

 quickness and cleverness of stroke in his gallop, and also stout- 

 ness sufficient to continue it. A greyhound of 'good blood' 

 would also require these properties even more fully than the 

 horse, but in addition there would be demanded the following 

 qualities namely, tact, destructiveness, jealousy, and hardihood 

 or impenetrability to injuries. Tact is wanted to enable the dog 

 to command himself at his turns, and to prevent his overtaxing 

 his energies in his efforts to carry out his purpose ; this quality, 

 in addition to those assigned to the race-horse, would render the 

 greyhound capable of doing what is required ; but, to make him 

 willing and anxious, there must be superadded, destructiveness to 

 induce him to endeavour to kill, jealousy to lead him to surpass 

 his fellow if possible, and impenetrability to injury, to make him 

 regardless of fatigue, injuries, and disappointments. With a 

 brain manifesting these qualities, a comparatively bad frame will 

 beat a very superior one, whose brain is deficient in the three last. 

 At least such will be the result, if my theory is correct; but 

 at all events we do know that there is some strange difference 

 between two animals, similar in external form, by which the one 

 shall be enabled to beat the other without allowing a point of 

 merit in a long course, and this invisible difference in general 

 language is called a difference in 'blood.' There seems to be 

 less essential difference apparent in the greyhound than in the 

 horse, between the slow form and the fast one. Any one con- 

 versant with race-horses could pick out certain animals, and posi- 

 tively decide that they must be slow, but no one can do this with 



