THE LAW OF PROGRESS 
will start what I call my super-family. I 
will start this super-family by choosing 
one male and one female from the two 
most distantly related of the distinct fam- 
ilies that I have previously established. 
This super-family I will also breed, in the 
same way that I have the other families, 
toward the same common standard to- 
ward which I have been breeding them. 
Now, since by this time I have several 
different families that are distant kin to 
one another, and all have been and are 
being line-bred towards the same standard 
of perfection, and are all of the same 
blood-line as my super-family, I can from 
time to time, as I think my super-family 
needs new blood from distant kin, intro- 
duce it from the one of these several 
families that by my records is shown to 
be the most distant kin from my super- 
family. By this method of breeding I 
ean get new blood for my super-family 
from birds in whose veins flows the same 
blood as that which flows in the veins of 
my super-family, and who have been bred 
along the same lines and who are of dis- 
tant kin. This method of breeding puts 
me in a position to get new blood for my 
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