246 
LOCK : THE GROWTH OF 
Table XVI.— contd. 
It will be seen that the agreement between growth and 
changes of moisture is very striking, almost every marked 
alteration in the moisture of the air being accompanied by a 
corresponding change in rate of growth. And all three 
culms agree very closely in this respect. The parallelism 
was specially marked on August 19, on which day practi¬ 
cally no corresponding oscillations could be noticed in the 
degree of light, the whole day on the contrary being continu¬ 
ously dull. 
In the following table is given the average hourly growth 
in mm. from 7 a.m. to 6 p.m. and from 6 a.m. to 7 P.M. for each 
of the three halms on the three days of observation. There 
is a close agreement between these averages and the average 
moisture of the air on the respective days. 
