STORAGE, RESPIRATION, AND GROWTH. 41 
two caleium-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 
28 7 #17 +27 ~+7 ~#17 27 6 6 2 6 16 2 4 
[apr] MAY JUNE J yuey TAG SEPT. 1903} J 
Cold storage Cellar temperature -------- 
Fic. 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 
