STORAGE, RESPIRATION, AND GROWTH. 



41 



two calcium-chlorid tubes followed by two soda-lime tubes. The end 

 of the second soda-lime tube contained calcium chlorid to prevent the 

 loss of water from the soda lime. Finally there was a guard tube of 

 soda lime. The current of air for this purpose was afforded by two 

 bottles, one of which was filled with water and stood on a table, while 

 the other was empty and was placed on the floor. Each bottle was 



iiM 



Cold storage 



FIG. 12. Chart comparing results of analyses of Ben Davis apples used in respiration experiments 

 and kept in cold storage and at cellar temperature (total solids basis). 



closed with a two-holed stopper. A tube connected the bottom of the 

 first bottle with the second, and each bottle was connected with one 

 end of the train of absorption tubes, the full bottle acting as an 

 aspirator, while the empty one supplied the pressure. The current of 

 air entered the jar through a delivery tube, passed to the bottom of the 

 jar, and issued from a delivery tube leading from the top. The three 



