RELATION OF SHRINKAGE, ETC., TO SPECIFIC GRAVITY. 5 
$. PER $Q. IN.’ 
1) 
ECE ETA 
HEN GORRRRABER eae ee 
PERE BESe eT Oea ne ay aae 
HEHEHE Ht 
SLE BEeA asa See 
PTET TTT TTT SVT ae TTT 
TTT A Piel | 
PLT TT Le Ae 
eee 
GREER: aA 
TIT Ae 
PTT VA eT 
UZ Ae 
BES EAE 
7 BIBLE eg 
fuse: dA NHMBREREED PCO 
o- 325 6.5 
O SPECIFIC GRAVITY ; ye SPECIFIC GRAVITY 
(Q) Hanoness— Exp Surrace (4/ Swearinc Svrenc7w |] ro Grain 
» 1000 LB 
HARDNESS — 1000 LBS. 
SHEARING STRENGTH 
id Ht 4 
- aaa 
ean EaaE 
aaa 
BEE 
ies 
= era eee 
PLETE TT Ty 
LEA BEBE SaREe 
SERERaHanGT Sat 
HLL fee ea 
PECEECEHEEEE 
SaRRuRTEEeA ees 
Geese eee 
PCE EH 
BPE Ee SEE AE 
SOU RRRMRRRnnal dann 
Jee CREE BEER Se 
EO eas 
GERREREES 
= 
Lgatgeey 1000 LBS. 
_ TENSION = 1000 LBS. PER SQ. IN. 
C.2 ) oft 6.7 
SPECIFIC aa? —< See EE. eanernne 
(c) Baroness — Sipe Surrace ta ) Tension Lo Grain 
Fie. 4, 
In order that the relation between specific gravity and each of the 
various mechanical properties of wood may be easily put to practical 
use, the relation, both for green and for air-dry material, is given in 
the form of an equation (Table 1) and, in addition, in the form of a 
curve (figs. 1 to 4). 
