236 
LOCK : THE GROWTH OF 
measured, and the result is recorded in the following 
table 
Table X. 
Inter¬ 
node. 
Length. 
mm. 
Differ. 
ence. 
Inter¬ 
node. 
Length. 
mm. 
Differ¬ 
ence. 
Internode, j 
Length. 
mm. 
Differ¬ 
ence. 
67° 
13 
45 
180 
22 
23 
450 
—27 
66 
15 
2 
44 
209 
29 
22 
466 
16 
65 
16 
1 
43 
236 
27 
21 
452 
—14 
64 
17 
1 
42 
266 
30 
20 
494 
42 
63 
19 
2 
41 
282 
16 
19 
480 
—14 
62 
21 
2 
40 
300 
18 
18 
515 
35 
61 
23 
2 
39 
332 
32 
17 i 
480 
—35 
60 
25 
2 
38 
353 
21 
16 
503 
23 
59 
28 
3 
37 
333 
—20 
15 i 
435 
—68 
58 
32 
4 
36 
374 
41 
14 
446 
11 
57 
33 
1 
35 
395 
21 
13 
375 
—71 
56 
35 
2 
34 
455 
60 
12 
410 
35 
55 
40 
5 
33 
467 
12 
11 
337 
—73 
54 
50 
1 1° 
32 
496 
31 
10 
328 
— 9 
53 
58 
8 
31 
475 
—21 
9 
280 
—48 
52 
63 
! 5 
30 
480 
5 
8 
255 
—25 
51 
75 
12 
29 
475 
— 5 
7 
240 
-15 
50 
84 
92 
28 
486 
11 
6 
185 
—55 
49 
99 
1 15 
27 
477 
— 9 
5 
160 
—25 
48 
118 
19 
26 
495 
18 
4 
120 
—40 
47 
137 
19 
25 
470 
—25 
1 + 2+3 
300 
■ — 
46 
158 
21 
24 
477 
7 
— 
— 
— 
It will be seen that the internodes increase in length from 
the base upwards to about the sixteenth at a height of 4*37 
metres. Above this their length is approximately equal up 
to the 32nd at a height of 11*55 metres. Beyond this point 
growth appeared to be still going on, the point at which 
growth had ceased being some 6 metres from the extreme 
apex. 
Later on, judging from the appearance of other culms 
which were felled at a later date, the growing region soon 
became much reduced in length, until elongation was at last 
confined to the extremity of the hanging lash-like apex, 
where slow growth continued for a considerable time. 
* Beyond the 67th internode the culm was damaged in felling : this 
point is some 15 cm. from the tip of the bud. 
