INTRODUCTORY REMARKS. 9 



of phrenology) there can be no question that the intellectual 

 faculties depend upon the anterior, whilst the animal passions 

 reside in the posterior part of the brain ; and hence, while the 

 poodle's brain is of the same width behind as before, the 'bull- 

 dog's is considerably wider and higher between the ears than 

 behind the eyes. The consequence is that his animal passions 

 are all carried to an inordinate pitch, beyond even his own power 

 of control ; and he will suffer himself to be cut to ribbons before 

 he will quit his hold. In many cases the attachment to the 

 master is forgotten or overruled, and he will, if excited, fasten 

 upon him as readily as upon the object of his instinctive pursuit. 

 Here, then, is apparently a cause and effect ; there is an extra- 

 ordinary development of an organ, and a corresponding increase 

 of a faculty, which, no doubt, is intimately connected with that 

 organ, and this entirely independent of any change of blood, as 

 far as we know. The same will be found in man ; the pugilist 

 has the posterior part of his brain enlarged, whilst the forehead 

 is often low and deficient in volume : again, the apparently deli- 

 cate man, of high intellect and large brain, will often go through 

 fatigues which would wear down an equally delicate frame, where 

 the nervous organisation was of a less perfect character. 



It may therefore, I think, be assumed that what is usually 

 called 'good blood' is a highly perfect state or condition of 

 all the organs of the body, depending upon the development 

 of the brain or nervous system, and requiring that part of the 

 brain to be large in which reside the qualities which are particu- 

 larly desired in the individual: thus a race-horse of 'good blood' 



