HEALTHY, VIGOROUS BIRDS. 



243 



FIG. 133. LARGE HAND WHEEL. 



squads should be made before the specimens in either 

 group become too debilitated to take exercise ; because, 

 you see, if exercise is to be tested, exercise must actually 

 appear, in one squad, 

 as a factor in the ex- 

 periment. We will 

 tell you beforehand, 

 good reader, how it 

 will turn out. You 

 will not only find 

 that exercise will pre- 

 vent accumulations 

 near the vent, but by 

 careful watching you 

 will discover that 

 your squad which 

 possesses strengthen- 

 ed muscles performs 

 the act of evacuation in a vigorous manner, throwing 

 aside with force the feathers of the parts concerned and 

 holding them rigidly till the last portion of the urine, 

 as well as the more solid matter, has been 

 vigorously ejected, while you will also perceive 

 that the reverse is true of the other squad, 

 which exhibits only feeble orgasms, dribbling 

 and befouling. 



When young chicks are under the care of 

 the mother hen and are allowed freedom they 

 are in motion nearly all the time in daylight 

 hours. Plenty of exercise keeps up the proper 

 balance between the muscular, the nervous, 

 the circulatory and the digestive systems, and 

 tones up every portion and function of the 

 body. In such a case, there will be not more than one 

 or two per cent of the young birds showing posterior 

 parts befouled, and such birds were most certainly badly 



FIG. 134. 

 SCREW PUL- 

 LEY. 



