Tuer Carson DIoxIDE OF THE Sort AIR 339 
Tig. 53. MILLET CROPS SIX WEEKS AFTER SEEDING, ON THE TWO SOILS HAVING HIGH AND 
LOW INITIAL CONTENTS OF CARBON DIOXIDE, RESPECTIVELY 
Same as figure 52, but showing cylinders 
series 1 gradually became light green, until finally, when the experiment 
was stopped in September, the latter were beginning to mature while 
those in series 2 had not yet begun to show signs of ripening. 
Results 
The results of experiment 2 are summarized in table 6 (appendix, 
page 359), in which each figure represents the average of two duplicate 
samplings from each of two pots, an average of four samplings in all. 
