376 The N.Z. Journal of Science and Technology. [Dec. 
Gr. 
Table showing Rate of Growth of Thirty-four Species of Eucalypts 
of Value for Timber. 
(The average number of years taken to grow 12 in. in diameter, computed from 
measurements taken from numbers of trees at various places.) 
— 
W. H. Warren, C.E., 
Australian Timber. 
Forestry Commission, 
New Zealand, 1913. 
Forestry Commission: 
Paper by Rev. Sim- 
monds. 
Marumarunni, T a r a- 
naki (E. Maxwell). 
State Plantations, 
Rotorua (E. Max¬ 
well). 
1 
Wesley College, Three ! 
Kings, Auckland. 
Railway Reserve, Pa- 
pakura (E. Max¬ 
well). 
Karaka, Auckland 
(E. Maxwell). 
General Average Num¬ 
ber of Years to grow 
12 in. diameter. 
Eucalyptus ? sp. .. 
7-4 
7-4 
E. amygdalina (black 
• • 
. . 
9-6 
8-8 
. . 
9-2 
pepper-nut) 
E. robusta 
, . 
. . 
10-2 
• . 
. . 
10-2 
E. coriacea 
. . 
, , 
10-8 
. , 
• . 
. . 
10-8 
E. urnigera 
. . 
. • 
10-8 
. . 
. . 
10-8 
E. Gunnii 
. . 
12-9 
9 
. . 
. . 
10-9 
E. fastigata 
. . 
. . 
10-8 
10-7 
11*5 
11T 
E. corymbosa 
11-7 
. . 
. . 
. . 
. . 
• • 
11*7 
E. microcorys 
• • 
. . 
• . 
12-2 
• • 
12-2 
E. Macarthuri 
• . 
133 
11-3 
. . 
• • 
• • 
, . 
12-3 
E. acervula 
, , 
12 
133 
132 
9 
, , 
12-3 
E. saligna 
12-5 
. . 
• • 
. • 
. . 
(7-05?) 
• , 
12-5 
E. botryoides 
11 
. . 
• • 
• • 
• . 
14 
• • 
12-5 
E. obliqua (stringy- 
. . 
11-4 
10-7 
12-5 
. • 
• • 
17 
12-9 
bark) 
E. paniculata 
. . 
15 
111 
... . 
> . 
13 
E. rostrata (red-gum) 
16-9 
8-5 
14 
• • 
13T 
E. globulus (blue- 
. • 
15T 
12*7 
• . 
135 
gum) 
E. resinifera 
. . 
. . 
14-1 
• . 
14T 
E. gigantea 
. . 
14-4 
• • 
• • 
14-4 
E. tereticornis 
. . 
• . 
15-7 
13-3 
• . 
14-5 
E. virgata 
. . 
. • 
. . 
14-7 
. . 
14-7 
E. viminalis 
• • 
17-4 
9 
16-4 
14-8 
E. Sieberiana 
. . 
, , 
13-5 
16-3 
• • 
14-9 
E. pilularis 
. . 
• • 
11*4 
• • 
18-4 
14-9 
E. capitellata 
. . 
. . 
15 
(7-5) 
. . 
15 
E. punctata 
• . 
• • 
22-5 
* 
* 
15-4 
E. sideroxylon 
. . 
• • 
16-3 
. . 
16-3 
E. diversicolor (karri) 
,* , 
. . 
16-6 
16-6 
E. eugenioides 
• . 
192 
10-8 
20-7 
16-9 
E. haemostoma 
18 
• . 
. . 
, t 
18 
E. longifolia (woolly- 
butt) 
18-2 
18-2 
E. pipereta 
20 
• . 
. • 
. . 
20 
E. corynocalyx 
. • 
. . 
22-8 
• • . 
22-8 
E. maculata 
29-8 
29-8 
Average of 34 .. 
14*3 
* S. I. Clark, 8‘3. 
