94 MISS A. BATESON AND MR. F. DARWIN ON THE EFFECT OF 
Exp. 27.—Aug. 22, 1886. Sunflower-pith; lever. 
Times of Times of 
observation. Rate of “ growth. observation. Rate of “ growth. 
A.M A.M 
10.175 ............ 370 c. c. cold 1045  ........... 33 
water. 33 
10.9915 ............ 37 36 
10.22°3  ..........-. 37 10.448 . ........... 36 
10.26 — ............ 32 10.49  ............ 34 
10205 ............ Prussic acid, 38 
:2 per cent. 38 
10.985 ............ 30 39 
10.295 ............ 29 10.5239  ............ 42 
10.807 ............ 30 10.581 ............ 35 
10.8320 ........... 29 39 
10365 ........... Prussic acid 10.58 . ........... 38 
lee. added 10.565  ............ 45 
C47 percent.)| 10572 un 40 
21 | 41 
26 BU NEM 42 
1037  .......... Prussic acid | 110 .......... 42 
1 c. c. ad ed | 1LA een 38 
a pr cent) 116 ee 34 
|OLqL 0 eeeeee 32 
1040  ............ 28 | 33 
10415 ........... 28 | 119  J .......... 28 
28 Not flaccid. 
Fig. 5 
50 
40 
ti 
E 30 
o 
[5] 
© 
10.15 10.25 10.35 10.45 
TIME A.M. 
10.55 11.5 
Diagram showing effects of Prussic Acid. 
It will be seen that before the prussic acid was added the 
growth was rapidly slowing down, and that the effect of the 
addition was to cause an acceleration continued for half an hour, 
very different in character to that sudden rise caused by alcohol 
and ether. 
à 
= 
& 
