236 BREEDING. 
‘It may therefore be said that, on both’ sides, “dike produces 
lake.” 
3. In proportion to'the purity of the breed will it be trans- 
mitted unchanged to: the offspring. Thus a greyhound bitch of 
pure blood put to a mongrel will produce puppies more nearly 
resembling her shape than that of the father, 
4. Breeding in-and-in is not injurious to the dog, as may be 
proved both from theory and practice; indeed it appears, on the 
contrary, to.be very advantageous in many well-marked instances 
of the greyhound which have of late years appeared in public. 
5. As every dog is a compound animal, made up of a sire and 
dam, and also their sires and. dams, &c., so, unless there is much 
breeding in-and-in, it may be said that it is impossible to foretell 
with absolute certainty what particular result will be elicited. 
6. The first impregnation appears to produce some effect upon 
the next and subsequent’ ones. It is therefore necessary to take 
care that the effect. of the cross in question is not neutralised by 
a prior and bad impregnation. This fact has been so fully ‘estab- 
lished by Sir John Sebright and others that it is needless to go 
into its proofs.' 
By these general laws on the subject of breeding we must be 
guided in the selection of the dog and bitch from which a litter is 
to be obtained, always taking care that both are as far as possible 
remarkable, not only for the ‘bodily shape, but for the qualities of 
the brain and nervous system which are desired. Thus, in breed- 
ing the pointer, select a good-looking sire and dam by all means, 
but also take care that: they-were good in the field; that is, that 
they possessed good noses, worked well, were stout, and if they 
were also perfectly broken so much the better. So, again, in 
breeding hounds, care must be taken that the animals chosen are 
shaped as a hound should be; but they should also have as many 
of the good hunting qualities and as few of the vices of that kind 
of dog; and if these points are not attended to the result is. not 
often good. | 
To secure these several results the pedigrees of the dog and bitch 
are carefully. scanned by those who are particular in these matters, 
because then assurance is given that the ancestors, as far as they 
can be traced, possessed all those qualifications without which 
