264 



G. T. C\! DWELL. 



quiet when the chamber was darkened. This piece of wood was 

 kept in the animal chamber throughout the experiment in order 

 that the reduction in the volume of the apparatus would remain 

 constant. 



J44 



320 MO 3M> 2.90 2gO Z70 2iO 2St 240 





216 2te 



FIG. 2. The effect of desiccation on the carbon dioxide production of the meal 

 worm. Experiments 3 and 4 with controls 3^1 and 4.4 on animals not fed during 

 experiments and with determinations at 24-hour intervals. In experiment 5 the 

 control animals, curve 5 A (twice experimental scale) were fed. Point (o-x), curve 

 5, denotes carbon dioxide determination after 68 hours of desiccation. 



Both the experimental animal and control lost about 55 per 

 cent, of the body weight in 70 hours. The animals were still 

 active but much reduced in size. The experimental animal and 



