624 Harper. — Defoliation : its Effects upon the 
( 6 ) Autumn Wood %. 
1911. 
1910. 
1909. 
1908. 
I 9 ° 7 - 
1906. 
Average of 
six years. 
Section 13 
60 
50 
50 
60 
3 ° 
40 
5° 
3* 
1 2 
60 
5 ° 
5 ° 
5 ° 
60 
50 
5 ° 
1 1 
70 
60 
60 
60 
60 
60 
60 
10 
60 
60 
5 ° 
5 ° 
5 ° 
40 
50 
33 
9 
50 
40 
40 
40 
40 
40 
40 
33 
8 
60 
50 
50 
40 
40 
40 
5 ° 
33 
7 
60 
50 
5 ° 
5 ° 
50 
40 
5 ° 
33 
6 
5 ° 
40 
60 
70 
60 
5 ° 
5 ° 
3 3 
5 
70 
60 
60 
60 
60 
60 
60 
33 
4 
50 
60 
60 
70 
50 
50 
60 
33 
3 
60 
70 
60 
70 
60 
5 ° 
60 
33 
2 
70 
70 
60 
70 
60 
50 
60 
33 
1 
50 
60 
5 ° 
60 
50 
50 
60 
Average of 
thirteen 
60 
60 
50 
50 
50 
50 
50 
sections. 
TABLE II a. VARIABILITY OF RING-BREADTH, IN MILLIMETRES. 
Series 1. Greatest difference of any one reading from the mean of the three taken close 
together at that 
point. 
1911. 
1910. 
1909. 
0 
00 
1907. 
1906. 
Mean. 
Section 13 
0*24 
O" 14 
0-14 
0-16 
0*20 
0-06 
0-16 
,, 12 
0-14 
0-20 
0-38 
0-18 
0-40 
o-io 
0-23 
„ 11 
0*46 
0‘26 
0-30 
0*34 
0*22 
0-46 
°‘34 
„ i° 
0-12 
0-24 
0-12 
0 24 
0*26 
0-08 
0-18 
„ 9 
0-14 
0.18 
0-08 
0-08 
0*12 
o-io 
c- 1 2 
„ « 
0*02 
0*10 
0-08 
0-16 
0*10 
0-06 
0-09 
„ 7 
0-08 
0-06 
c-o6 
0-08 
0-08 
0-06 
0*07 
„ 6 
0-06 
0-08 
0*10 
0-06 
0-22 
0-12 
0. 1 1 
j> 5 
0-08 
o-io 
0-08 
0-06 
0-08 
0-08 
0-08 
» 4 
O’ I 2 
0*12 
0-06 
0*12 
0-12 
0-06 
0*10 
„ 3 
0-06 
0-16 
0*04 
0*12 
0*28 
0*10 
0-13 
>, 2 
0-06 
0*20 
0* 14 
0*2 2 
0-14 
O’ 20 
0-16 
„ 1 
0*10 
0-06 
0-08 
0-06 
o*i 8 
0-18 
0*11 
Average of 
thirteen 
0-13 
0-15 
0-13 
0*14 
0*19 
0-13 
0-15 
sections. 
Series 2. Greatest difference of any single reading from the mean of the twelve taken 
all round the tree. 
1911. 
1910. 
1909. 
1908. 
1907. 
1906. 
Mean. 
Section 13 
0-15 
0.08 
o-io 
o-io 
0-13 
0-06 
o-io 
33 
12 
0-12 
0-14 
0-19 
o-io 
0-17 
o-io 
0-14 
11 
0*26 
0-16 
0-13 
0-17 
0-16 
0-19 
0-18 
31 
10 
0*10 
o-io 
0-05 
O-II 
0" 1 1 
0-05 
0-09 
33 
9 
0-06 
0-08 
0-06 
0-06 
0-08 
0-05 
0-07 
33 
8 
0-02 
0-07 
0-07 
0-09 
0-07 
0-05 
0-06 
„ 
7 
0-06 
0-04 
0-04 
0-05 
0-06 
0-04 
0-05 
33 
6 
0-04 
0-05 
0-05 
0-05 
0-09 
0-06 
0-06 
33 
5 
0-06 
0-06 
0-06 
0-05 
0-05 
0-05 
0-06 
33 
4 
0-06 
o-io 
0-05 
0-05 
0-07 
0-05 
0-06 
33 
3 
0-04 
0-09 
0-03 
0*10 
O-II 
0-09 
0-08 
33 
2 
0-06 
o-io 
o-io 
O-IO 
o-io 
o-io 
0-09 
33 
1 
0 
6 
0-04 
0-05 
0-05 
O-II 
0.13 
0-07 
Average of 
thirteen 
o-oS 
0-09 
0-08 
0-08 
o-io 
0-08 
0-09 
sections. 
