and the Mode of its Communication. S3 
<c Experiments on Heat, made at Munich, 11th March, 1803. 
“ The large cylindrical Vessels, No. 1 and No. 2, (made of thin 
“ sheet brass,) were filled with hot Water, and exposed to 
“ cool in the Air of a large quiet Room. The Ends of both 
“ these Instruments were well covered with warm Clothing, 
“ Furs, &c. The vertical polished Sides of No. 1 were naked. 
“ The Sides of No. 2 were covered with one Thickness of fine 
ft white Irish Linen, which had been worn, strained over the 
“ metallic Surface.” 
Time. 
Temperature 
Tem- 
perature 
of the 
air. 
Time. 
Temperature 
Tem- 
perature 
of the 
air. 
h. 
min. 
of No. 1, 
naked. 
of No. 2, 
covered. 
h. 
min. 
of No. 1 , 
naked. 
of No. 2, 
covered. 
10 
IO 
126^ 
12 6° 
43!° 
4 
— 
6i¥ 
53i° 
43!* 
— 
3°. 
*°9! 
io6f 
43! 
— 
3° 
59! 
52 
— 
— 
45 
105 
100i 
43! 
5 
30 
57 
49! 
42! 
11 
— 
lOli 
94! 
44 
6 
— 
55! 
49! 
— 
— 
H 
— 
94 
— 
- — 
30 
54i 
48! 
— 
— 
15 
9 7f 
9°i 
— 
7 
— 
53! 
47! 
42 
— 
30 
94 
86'i 
— 
8 
— 
5 1 2" 
46! 
— 
39 
— 
84 
— 
9 
— 
5° 
45! 
— ■ 
— 
45 
9ii 
82i 
— 
10 
— 
49 
45 
— 
12 
■ — 
88x 
79i 
— 
8 
1 2th Mar. 43 
42 
40 
— 
15 
85! 
76 
— 
The instruments were now removed into a 
warm room. 
— 
25 
84 
— 
— 
8 
2 
43 
42 
f>2 
— 
30 
— 
7 4! 
— 
— 
32 
44! 
44! 
fi2i 
— 
45 
80 
7° 
— 
— 
47 
46* 
’ 46'! 
63 
1 
— 
78 
6Si 
— 
9 
24 
48 
49! 
— 
3° 
74? 
— 
10 
— 
50 
52 
— 
2 
— 
7 1 i 
6 ii 
43! 
— 
4 1 
5*! 
53! 
— 
— 
30 
68 } 
5 8* 
43! 
— 
54 
5b“! 
— 
3 
— 
6 Si 
56f 
— 
12 
2 6 
54! 
57 
— 
— „ 
30 
6 Si 
54! 
— 
An end was now put to 
the experiment. 
M 2 
