AN EGG FABM. 



the same heat, sun, fresh air, water, and everything else 

 down to the smallest detail. Only and excepting this, 

 to wit : You contrive plenty of exercise for one of the 

 squads, and for the other, not. Remove the filth from 



the posterior parts of all the birds in both squads if it 

 reappears, for a week or so after separation. This is so 

 as to be able to detect results after the exercise has been 

 allowed time to take effect. The division into two 



