382 True. — On the Influence of Sudden Changes of 
mately average magnitude, and in the manner of its occurrence 
is quite typical. In order to show more exactly the time- 
relations involved, measurements taken at short intervals 
during the first half-hour after the transfer to the salt-solution 
are shown in Table XI. 
The contraction is seen to begin immediately, and to be 
TABLE XI. 
Period. 
Change in 
length. 
Medium. 
2 . 30 - 2.33 
-8-o units of scale 
1% KN 0 3 
2.33-2.36 
—1*0 „ 
11 ' 
11 
2.36-2*40 
—i *0 „ 
11 
2.40-2.45 
-o *5 „ 
11 
11 
2.45-2.50 
0*0 „ 
11 
11 
2.50-2.55 
1*0 „ 
*, 
1 1 
2 - 55-3 
2-0 „ 
11 
” 
i unit of scale = o*oi 82 mm. 
finished very soon. After a short period of equilibrium, growth 
begins at a slow rate, but fails to recover the normal speed 
before the change to water takes place. The return of the 
radicle to water is followed by the usual elastic elongation. 
In the following table, the time-relations are shown more in 
detail. 
TABLE XII. 
Period. 
Growth. 
Medium. 
6.30-6.35 
i o-o units of scale 
Water 
6.35-6.40 
6-o 
11 
6.40-6.45 
4.0 
>> }> 
11 
6.45-6.50 
2-0 
>) )) 
11 
6.50-6.55 
1-5 
)) >} 
11 
6-55-7 
i*5 
}) >> 
11 
i unit of scale = o-oi 82 mm. 
The elastic elongation takes place very soon after the change 
to water, and is of short duration. 
