Table II. — Water at 0° C. and 30 
OSMOTIC PRESSURES DERIVED FROM VAPOUR-PRESSURE MEASUREMENTS. 305 
True mean 
coefficient 
of 
compres¬ 
sibility. 
*0 I-H r-H O O 
1 
o o o o o 
I— 1 . • . • 
x in 10 in io 
i—i hP O 05 OfMCOCOHiOCOO 
HiOiGO 
O ^P ^ ^P -P'<F^P'<P''P^P^P''P 
~P ^ -p ~P ^P'-P^P^P-P'-p-P-P 
Coefficient 
of 
compres¬ 
sibility of 
the glass. 
O r-H 
I CM 
O <M 1 ! 
»— 1 • 1 
X ® 
0*229 
0*224 
Mean 
relative 
coefficient 
of 
compres¬ 
sibility. 
in O O 05 05 
1 IO <N rH Tfl 
O 00 00 GO 00 
r-H • • • • 
x ^ ^ ^ 
CM lO H o 
CO(N<NCO OJCOCOrHO^CUO 
'*-+-*-* 
Pressure 
range in 
atmo¬ 
spheres 
above 
atmospheric 
pressure. 
H CO H ^ 
O i — i 
o ~ ~ 
-4-> ~ ^ 
'rP r-H CO r-H 
r-H 'P CO ~P 
h to O (NH^lO^HtNO 
-ff lO N 05 CO^fOCDlO^COfM 
O - - - 
-*-> - -- +3 ~ ~ *N ~ - 
o H rf< IQ o <N H ^ lG H (N 
(N O I- (NCO^IOOIQ^CO 
Mean 
tempe¬ 
rature of 
observation. 
. CO 
O -y 
“ o 
CO 05 
lO rH 
05 O 
<M CO 
No. of 
piezometer. 
X 
O 
CO Uh 
True mean 
coefficient 
of 
compres¬ 
sibility. 
o 40 05 05 O’ 
i go 05 
o o o o o 
r-H .... 
^ lO fO iO lO 
h h O 05 1> O X 'P --h x 
h O) ^ o XX fO CO CO lO 
CO lO lO -«P -P Hp -p Hp -rp 
Tp Hp Tp -P ^P -P 
Coefficient 
of 
compres¬ 
sibility of 
the glass. 
id 1—H 
1 Ol 
o ^ 1 
X o 
0-229 
0 • 224 
0-224 
Mean 
relative 
coefficient 
of 
compres¬ 
sibility. 
o tP GO 00 05 
1 OlOfOO 
O 00 X 00 X 
r-H • • • • 
x -P -P -P -P 
(N (N O O CO h ^ O I> ^ 
X CO »-H 'P CO CD CO rH O CO 
CO CO CO (M (N (N (N Cl (N (N 
•p ^P pH P P P P P P 
Pressure 
. 
range in 
atmo¬ 
spheres 
above 
atmospheric 
pressure. 
I>- X O 
(M ^ (M rn 
O - - - 
O D- X U- 
rH o X X X 
rH Cl ^ lO lO 1 —1 rp 1> rH 
o ~ « o - O ~ ~ - 
-t-> ~ ,r ' ~ -*J *' P ~ ~ ~ 
O ^ N rH O r-H U-XXX 
nH Ol P r-H lQ H ^ Tfi 
Mean 
tempe¬ 
rature of 
observation. 
• <M 
O -y 
° © 
Ol 
>o CO O 
05 05 O 
Cl Ol co 
No. of 
piezometer. 
< _ 
r-H GO 
2 s 2 
