64 
Steam Engine. 
Table of the force of vapour from water in every tem- 
perature from that of the congelation of mercury^ or 
40 ° below zero of Fahrenheit^ to 325 °. 
Tempe- 
Force of vap. 
Tempe- 
Force of vap. 
Tempe- 
Force of vap.> 
rature. 
in inches of 
rature. 
in inches of 
rature. 
in inches of 
mercury. 
mercury. 
mercury. 
ni 3 
36®. .. - 
, 009 
^ 910 
-30 
,020 
37 
,237 
79 . 
,971 
-20 
,030 
38 
,245 
80 
1 . 00 
-10 
,043 
39 
,254 
81 
1. 04 

40 
,263 
82 
1. 07 
0 
,064 
41 
,273 
83 
1 . 10 
i 
,066 
42 
,283 
84 
1. 14 
2 
,068 
43 
,294 
85 
1. 17 
3 
,071 
44 
,305 
86 
1 . 21 
4 
,074 
45 
,316 
87 
1. 24 
5 
,076 
46 
,328 
88 
1 . 28 
6 
,079 
47 
,339 
89 
I. 32 
7 
,082 
48 
,351 
90 
1. 36 
8 
,085 
49 
,363 
91 
1. 40 
9 
,087 
50 
,375 
92 
1. 44 
10 
,090 
51 
,388 
93 
1. 48 
11 
,093 
52 
,401 
94 
1. 53 
12 
,096 
53 
,415 
95 
1. 58 
13 
,100 
54 
,429 
96 
1. 63 
14 
,104 
55 
,443 
97 
1 . 68 
15 
,108 
56 
,458 
98 
1. 74 
16 
,112 
57 
,474 
99 
1 . 80 
17 
,116 
58 
,490 
100 
1 . 86 
IS 
,120 
59 
,507 
101 
1. 92 
19 
,124 
60 
,524 
102 
1. 98 
'20 
,129 
61 
,542 
103 
2. 04 
21 
,134 
62 
,560 
104 
2 , 11 
22 
,139 
63 
,578 
105 
2 . 18 . 
23 
,144 
64 
,597 
106 
2. 25 
24 
,150 
65 
,616 
107 
2. 32 
25 
,156 
66 
,635 
108 
2. 39 
26 
,162 
67 
,655 
109 
2. 46 
27 
,168 
68 
,676 
110 
2. 53 
28 
,174 
69 
,698 
111 
2 . 60 
29 
,180 
70 
,721 
112 
2 . 68 
SO 
,186 
71 
,745 
113 
2 . 76 
31 
,193 
72 
,770 
114 
2. 84 
73 
,796 
115 
2. 92 
32 
,200 
74 
,823 
116 
3. 00 
cyr% 
OO 
,207 
75 
,85 i 
117 
3. 08 
34 
^214 
76 
,880 
118 
3. 16 
35 
,221 1 
7"^ 
,910 r 
' U9 
0 ^ 
