58 
A COMPARATIVE TABLE OF WEIGHT AND SPECIFIC GRAVITY. 
NAME OP WOOD. 
WEIGHT 
PER 
CUBIC 
FOOT. 
SPECIFIC 
GRAVITY. 
REMARKS. 
English Oak 
lbs. OZ. 
40 14 
.654 
Epping. 
Do. . 
39 
0 
.625 
Sussex. 
Do. 
40 
10 
.714 
Wandsworth. 
American Oak .. ., 
42 9 
.681 
English Beech 
41 
2 
.658 
From Oxfordshire. 
Do. . 
27 
0 
.438 
From Epping. 
Riga Fir ,. 
37 
10 
.602 
Malabar Teak .. 
37 
14 
.606 
Ceylon Teak 
47 
3 
.755 
P.S.—The writer of this Essay wishes to return his best thanks to 
those few gentlemen who so kindly and promptly responded to his 
appeal to them. He would most particularly thank His Honor the 
Superintendent of Auckland (Robert Graham, Esq.,) and the Chief 
Provincial Surveyor of that Province, (C. Heapliy, Esq.) ; also the 
gentlemen composing the Chambor of Commerce at Wellington. To 
Mr. Hoapliy ho is largely indebted for much useful information in 
Colonial (Economic Botany, as well as for that portion of the Eirst 
Table containing the Woight and Specific Gravity of Woods, and the 
whole of the last Tablo heroin given. 
W. C. 
Napier, New Zealand, 
October 26, 1864. 
