of Edinburgh, Session 1884-85. 31? 
Marine Glue. 
Temp. 
in 
Degrees 
Centi- 
grade. 
Thermal Effect on applying 
Pressure. 
Thermal Effect on relieving 
Pressure. 
Pressure. 
Deflec- 
tion. 
Temp. 
Raised. 
Rise 
per Ton, 
Pressure. 
Deflec- 
tion. 
Temp. 
Lowered 
Eall 
per Ton. 
15° -5 
83 -6 
4-76 
1° *36 
0°’91 
30-8 
4-7 
1°'34 
o 
o 
CO 
OO 
47-4 
6-24 
1°*7 8 
0°-85 
45 
6-26 
1° *79 
0 
01 
© 
66 
8-4 
2° -4 
0°‘82 
457 
6-45 
l°-84 
0°-91 
Turning our attention, in the next place, to colloids, we 
examined common glue in three forms — (1) the brittle form in 
which it is usually sold; (2) as a dry jelly; and (3) as a viscous 
liquid, which poured with difficulty. The following table shows 
the results : — - 
Glue (Brittle). 
Temp. 
in 
Degrees 
Centi- 
grade. 
Thermal Effect on applying Pressure. 
Thermal Effect on relieving Pressure. 
Pressure. 
Deflec- 
tion. 
Temp. 
Raised. 
RiSe 
per Ton. 
Pressure. 
Deflec- 
tion. 
Temp. 
Lowered. 
Eall 
per Ton. 
18° 
24*4 
1*8 
0°-42 
1 
0°-39 
22*5 
1*8 
0°*42 
0° 42 
45-2 
2-94 
o 
d> 
oo 
CO 
o 
44“5 
3-44 
0° *8 
0°*40 
46-6 
3-24 
0°-75 
0°’36 
45 
3-66 
0 o, 84 
0°-42 
67-4 
4-5 
l°-05 
0°-35 
67 
5*3 
1°*22 
0°*41 
Glue (Jelly). 
16° 
24*4 
1-67 
CO 
CO 
o 
0°*33 
24-1 
1-67 
0°-36 
0°‘33 
45 
31 
0°'68 
0°-34 
44 
3-3 
o 
to 
0°*36 
65 
4*8 
^b 
o 
o 
7—1 
0° '36 
64 
5-1 
1°11 
0°-39 
Glue ( Viscous Solution). 
17° 
23 
1-02 
0°-24 
0°*23 
23-1 
1-06 
0°-25 
0°-24 
457 
1*91 
^b 
*rb 
o 
O 
0° ’22 
45 
217 
o 
0 
CN 
O 
0°-25 
67-6 
2-9 
0°-67 
0°-22 
67-3 
3-36 
0°-78 
0 o, 26 
