Temperature on the Rate of Growth in Pisum sativum. 43 
Table I. 
In each experiment thirty-five peas were used ; the figures for initial length and growth are 
means. The columns give, in order, initial length, growth in mm. in 2 2| hours, temperature, 
standard deviation, and probable error of the mean. 
The experiments are in chronological order. 
Initial Length . 
Growth . 
Temperature . 
Standard Deviation . 
Probable Error . 
Series I. 
18*91 
8*56 
n* 4 ° 
i*7354 
0*2976 
21*23 
14*18 
14*8° 
2*4428 
0*4252 
22*79 
17*32 
17*8° 
2*7911 
o*5275 
2 i *74 
17*09 
1 8*8° 
3‘95 T 1 
0-6776 
21*18 
17*32 
19*3° 
3*0308 
o*5443 
14*17 
21*00 
21*3° 
2*9186 
0*5727 
14*74 
22*33 
22*7° 
2*8922 
0-5047 
16*96 
2 2*00 
24*0° 
3*8829 
0*7615 
21*13 
25*33 
25*8° 
3*8588 
0*7045 
20*80 
25*45 
27*8° 
4*0797 
0-7102 
19*68 
30*00 
29*9° 
5*374 2 
0*9217 
15-97 
28*60 
32*9° 
5’55 I 9 
0-9521 
14*65 
25*35 
34*9° 
4*9254 
0*8447 
Series 2. 
16*27 
5*89 
6*o° 
1*2598 
0*2129 
i 5 ‘ 8 2 
6*62 
7*5° 
1*2133 
0*2081 
18*94 
14*44 
14*0° 
1*8179 
0*3118 
I 9‘53 
19*17 
15*5° 
1*6302 
0-2756 
i9*38 
18*03 
i5*5° 
2*3288 
0*4054 
19*96 
19*00 
16*5° 
2*5071 
0*4238 
21*65 
19*76 
16*8° 
3*2568 
0*5669 
1 8*44 
21*18 
17*8° 
2*3695 
0*4064 
17*72 
2 i *93 
19*3° 
2*1763 
0-4188 
18*40 
2 i *37 
19*8° 
3*5955 
0-6564 
13*63 
22*90 
19*8° 
3*6534 
0*7618 
11*24 
25*18 
20*3° 
2*9566 
0*4998 
io *47 
26*29 
21*0° 
3*2970 
0*6019 
12*53 
25*02 
21*5° 
2*81 13 
0*4752 
14*65 
25*94 
21*9° 
3*1660 
o *5338 
I5*7i 
27*68 
23 * 3 ° 
2*9061 
0*5059 
14*56 
27*86 
23*5° 
3*2195 
0*5521 
12*24 
28*97 
25 * 4 ° 
3*2897 
0*5561 
10*85 
32*76 
27*7° 
2*7343 
0*5362 
9*26 
29*46 
28*0° 
1*6416 
0*3981 
20.75 
26*08 
30*7° 
3 * 9*76 
0*8760 
I 9 ' 5 ° 
24*28 
30*7° 
4*4981 
1 * 35 6 2 
16*5 
23*56 
30*2° 
3*2528 
o *5939 
10*76 
27*64 
29*0° 
2*1393 
0*3842 
15*57 
1*40 
2*5° 
o*8ooo 
0*2066 
9*77 
0*82 
0*25 
0*3856 
0*1162 
10*87 
28*18 
29*0° 
2*7500 
0*6875 
9* I 5 
o*68 
2*75° 
0*4583 
0*1025 
Series 3 - 
n*8o 
3*i7 
3*5 
o *9545 
0-1662 
I4*i3 
3*77 
4 * 5 ° 
1*0993 
0-1858 
12*65 
1*29 
2*5° 
0*4679 
0*0802 
12-09 
5*6i 
7 * 3 ° 
1*1709 
0*2008 
13*39 
9*83 
12*3° 
1*8377 
0*3106 
14*50 
9*14 
10*5° 
i*37i7 
0*2319 
13*79 
6*72 
9 * 3 ° 
1*1097 
0*1903 
11*14 
6*56 
9*2° 
1*2338 
0*2148 
10*67 
9*57 
12*3° 
1*3896 
0*2580 
12*24 
ii *35 
12*8° 
i *4783 
0*2535 
13*88 
11*64 
13 * 6 ° 
i *8935 
0*3242 
