126 
DE. JOULE ON 
SOME THEEMO-DTNAmC PEOPERTIES OP SOLIDS. 
Material. \ 
\ 
Diameter of | Experimental 
Theoretical 
pillar. i thermal effect. t 
hermal effect. 
inch. j 
0 _ 
f 
J. ' 
•152 
•l64 
1 ' 
•032 
•039 
_l ; 
•234 
•235 
1 1 
•018 
•016 
Wrought iron 
1 
•032 
•038 
1 
•076 
•081 
1 
•264 
•187 
1 
•442 
•327 
L. 
Mean 
•115 
•108 
X 
•112 i 
•109 
4 
1 
•167 
•144 
4 
1 
•045 
•035 
2 
•082 
•062 
X 
•188 
•139 
X 
•342 
•292 
1 
1 
•014 
•036 
•015 
•034 
1 
•051 
•072 
1 
•146 
•167 
1 
•471 
•350 . 1 
L 
IVT ea.n 
•118 
•107 
! 
1 X 
•136 
•156 1 
X 
•083 
•070 , 
X 
•118 
•097 
1 
a 
1 
•275 
•219 
•028 
•023 
Copper < 
1 
1 
•049 
•154 
•053 
•112 
1 
•322 
! -260 
1 
•643 
' -483 
Mean 
•146 
•124 
— 
rl X 
•080 
! -079 
1 1 
; -094 
•079 t 
Lead 
1 
j -183 
•196 
1 
Mean 
■087 
•079 
i 
V . _ - - j 
1 — 
r _S_ 
1 -017 
•008 i 
1 0 
•018 
•015 
I Mean 
•017 
•on 
^ ! 
fl 1*4 
•007 
•006 
1 i 3 
•009 
•005 
Wood 
< 3 
•014 
1 -Oil 
1 
Mean 
.! -010 
1 
j -007 
!-■■ 
r 3 
1 -046 
•016 
•026 
•026 ! 
Wood cut across the grain 
■! = 
i -050 
i -061 ; 
I IVlpnm 
•037 
•038 

Vulcanized india-rubber ... 
...| 1*22 
' -125 
•050 
