LAW OF CORRELATION. 91 



ing also the form and quality best adapted to live hard 

 and feed." ' 



It is not claimed that high feeding qualities cannot 

 be combined with good milking properties, but that 

 it is easier to excel in either single quality than to se- 

 cure a high development of both. It does not, as a 

 matter of course, follow that antagonistic characters 

 are strictly incompatible. Additional illustrations of 

 the law of correlation may be found in the chapters 

 relating to other topics ; the facts already cited will, 

 however, serve my present purpose, as they clearly 

 indicate that an intimate relation exists between the 

 characters that are comprised in the dominant features 

 of the organization, and that these characters are trans- 

 mitted in their integrity, without essential change. 



An equilibrium of the organization can only be 

 obtained by an arrangement of its elements in strict 

 accordance with the law of correlation. Any modifi- 

 cation of even a single character may, therefore, in- 

 volve corresponding changes in other parts of the sys- 

 tem, and a consequent rearrangement of the dominant 

 characteristics. 



When the balance of the system is in this manner 

 disturbed, it is difficult to determine the extent of the 

 change that may follow, as it may result in trans- 

 posing the latent and dominant characters, and develop 

 in the offspring a resemblance to some remote ances- 

 tor. 



1 Farmer's Magazine, vol. xiv., p. 50. See also Culley on "Live- 

 Stock," fourth edition, 1807, p. 87. 



