HEALTHY, VIGOROUS BIRDS. 



241 



nearest to a healthy state of all the various organs ; yet, 

 since there is a great deal of muscular strength necessary 

 to the proper per- 

 formance of the act 

 of evacuation, with- 

 out such strength 

 there will be soiling 

 of the feathers, which 

 will go on from bad 

 to worse. 



Eeader, if you 

 would test the cor- 

 rectness of the above, 

 take a score, or fifty 

 or more if you have 

 them, of brooder 2 

 chicks that have been L 

 confined in a manner 

 to prevent exercise. 

 Select only those that 

 have the unsightly 

 protuberance adher- 

 ing to the feathers 

 near the vent. Re- 

 move the deposit, and 

 keep removing it care- 

 fully during the early 

 stages of the experi- 

 ment we are about to 

 describe, using warm 

 water and patience, 

 and taking pains not 

 to injure either the 

 flesh or the feathers. 

 Separate your afflicted specimens into two broods, im- 

 partially, as regards size and health. Give each brood 

 16 



