SUCCESS IN POULTRY CULTURE 
cause, ‘‘if man goes on selecting, and thus 
augmenting, any peculiarity, he will al- 
most certainly modify unintentionally 
other parts of the structure, owing to the 
mysterious laws of correlation.’’ 
So we see that the greatest minds can 
but dimly see and but little understand the 
laws that govern variation and inherit- 
ance; furthermore, that almost infinite 
patience and knowledge and skill are nec- 
essary for any one to become a skilled 
fancier or breeder. Nevertheless, they 
(the great naturalists) know and admit, 
and we (the common, weak-minded and 
numerous people) also know, that many 
owners of mongrel herds and flocks do 
improve them (unconsciously, perhaps) by 
always selecting the strongest, healthiest 
and most beautiful of their herds and 
flocks to breed from. 
This being true, then I am going to 
give to my readers some very simple rules 
for the breeding of poultry, which I have 
found, by long experience, to be good and 
reliable. 
But before I do so I desire to say a few 
words as to my methods of treating dis- 
eases of poultry—methods which I have 
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