82 
On Shoeing and cutting the Hoof of the Horse. 
Temperature 
of the air. 
Wet-bulb 
Depression. 
Tension 
by tie w point. 
Tension by 
Table of Depres- 
sions. 
63°7 
6.2 
50 
48 
54.4 
6.9 
52 
50 
60.0 
85 
48 
46 
72.0 
5.0 
74 
72 
682 
12.2 
45 
38 
92.5 
11.5 
59 
57 
94.3 
12.8 
55 
52 
90.3 
7 8 
70 
69 
89. 
70 
74 
70 
84.5 
175 
30 
31 
93. 
24.6 
18.4 
19 
87.5 
21.3 
20. 
22 
91.8 
29.4 
11.3 
9 
93.2 
27- 
11.4 
14 
96.5 
30.3 
11. 
10 
88.7 
20. 
2G 
28 
85. 
3.3 
84 
84 
88.4 
66 
71.5 
71.5 
89.8 
9'8 
65 
60 
80. 
12 8 
50 
44 
81.3 
5.3 
77 
75 
94. 
13. 
51 
52 
95.6 
8.1 
54 
53 
For those whohave frequent occasion to learn the aqueous tension of the atmoJ- 
phere by the detv point experiment, it will save a troublesome calculation to have 
a table of reference for the value of the tensions in depressions of the dew point. 
I subjoin, therefore, a small table made on this principle. The distance of the 
dew point varies so little tor the different temperatures, that one column would 
nearly answer for the whole, but iu atmospheres nearly deprived of moisture, 
Daniel’s method becomes nearly useless, from the great degree of cold required to 
produce deposition. 
Temperature. 
® ^ 1 
~_gl 
jl 
.2 ^ 
1 o 
a. a 
£.© 
-h a. 
Tension of vapour. 
76 
50 
2o 
10 
0 
30° 
50° 
70° 
90° 
110° 
8° 
9 
9 
9,5 
10 
20° 
20 
20,5 
21.7 
23.8 
40° 
40 
41 
43 
45 
60° 
62 
65,5 
69 
72 
infinite. 
the Principles by which ice ought to be guided in Shoeing 
and cutting the Hoof of the Horse. 
We may assume, in the first place, that the Dower nf r 
resistance which exists in masses of horny substance, like those of which Urn wall* 
quattUyT^ml. 8 ™ portion to the actual.* 
