374 
The N.Z. Journal of Science and Technology. 
[Dec. 
E. 
Table showing the Rate of Growth in New Zealand of Indigenous 
Timber-trees compared with the Rate of Growth of Foreign 
Trees in Foreign Countries. 
(In each case the number of years taken to grow 12 in. in diameter is given.) 
T. F. Cheeseman 
(Average 9'7 in. 
to 10 in. radius). 
Auckland Do¬ 
main (Measure¬ 
ments by E. 
Maxwell, 1918). 
Forestry Com¬ 
mission. 1913. 
Pukekura Park, 
N ew Plymouth 
(E. Maxwell, 
1918). 
W. N. B 1 a i r, 
Hardwoods of 
Otago. 
Laslett. 
General Average. 
Kauri 
58-2 
45-36 
50-93 
65-96 
80-4 
60*1 
Rimu 
58-84 
57-77 
162 
"2 
58-31 
White-pine . . 
44-88 
75 
150 
o • 
59-94 
Totara 
57-96 
39-83 
156 
•H bC 
48-89 
Miro 
59*04 
96 
120 
lo s 
£ 
77-52 
Tanekaha 
76-32 
68-57 
138 
C> ^ 
Sh ^ 
72-44 
Kawaka (Libocedrus Bidwillii) .. 
. . 
62 
120 
^ .2 
<D 
62 
Matai 
. , 
11111 
137 
<D 
111-11 
Puriri 
24-57 
H 
24-57 
— 
Laslett. 
The Forester. 
i 
Moon and 
Brown. 
i 
Imported Tim- 
b e r from 
Young Trees.j 
Imported Tim¬ 
ber from Old 
Trees. 
General Ave¬ 
rage. 
, 
Elm (English) 
J18 
1 33-6 
1 
J *• 
• • 
.. 
25-8 
Cedar (Honduras) 
23-4 
. . 
. . 
• • • 
23-4 
Oak (English) 
118 
i 34-08 
J 30-53 
• • 
27-52 
Oregon (Douglas fir) 
. . 
• • 
43-79 
27-73 
41-51 
37-67 
Scots pine ( Finns sylvestris) .. 
51-84 
25-29 
. . 
43-56 
Larch 
, , 
28-03 
. . 
28-03 
Pinus vonderosa 
• • 
. • 
47-37 
47-37 
Ash (English) 
34-8 
. . 
34-8 
Spruce 
35-29 
. . 
35-29 
Mahogany (Honduras) 
38-4 
. . 
.. 
38-4 
Beech (English) 
33-96 
.. 
33-96 
Teak (Moulmein) 
48 
• • 
48 
Ironbark (Australian) 
48 
. . 
. . 
48 
Greenheart (Demarara) 
55-2 
. • 
. . 
• • 
55-2 
Oak (white American) 
56-4 
• • 
. . 
56-4 
Dantzig fir 
* 57-84 
, . 
57-88 
Pinus strobus 
• • 
. . 
5714 
57-14 
Ash (American) 
75-32 
75-32 
