AT NIGHT, FROM THE EARTH, ETC 
129 
inged according- to the difference of the readings of the one on Long Grass and that in Air, from 
ions taken between 1843 Sept. 13 and Nov. 15. 
Excess of the reading of the thermometer in air above that placed 
Clouds. 
Wind. 
wool on raised board. 
On blue cotton 
wool on grass. 
On blue cotton wool 
on raised board. 
On white wadding 
on grass. 
On black wadding 
on grass. 
On flannel on grass. 
On flannel on raised 
board. 
On raw silk on 
grass. 
On raw silk on 
raised board. 
On silk from 
cocoon. 
On the raised 
board. 
On saw-dust on 
the raised board. 
On black-lead on 
raised board. 
On charcoal on 
raised board. 
On lamp-black on 
raised board . 
On whiting on 
raised board. 
On chalk on raised 
board. 
On tinfoil. 
On lead. 
On pantile. 
On slate. 
One-fourth of an 
inch above water. 
On paper on raised 
' • board. 
Modification. 
Amount 0— 10. 
High or low. 
Direction. 
Strength 0 — 6. 
O 
o 
o 
o 
0 
o 
o 
o 
o 
0 
o 
0 
0 
0 
O 
n 
o 
o 
... 
Cirrostratus 
10 
Cirrostratus 
10 
-b-9 
-0-9 
Cirrostratus 
10 
-1-3 
-30 
Cirrostratus 
10 
09 
07 
Cirrostratus 
10 
-09 
-1-3 
Cirrostratus 
10 
Cirrostratus 
10 
1-8 
1-9 
Cirrostratus 
10 
1-5 
10 
Cirrostratus 
10 
Nimbus ... 
10 
Nimbus ... 
10 
... 
fleecy cl.... 
10 
6-8 
Cirrostratus 
10 
27 
Cirrostratus 
10 
2-5 
1-5 
07 
0-4 
Overcast ... 
10 
2-2 
27 
Cirrostratus 
10 
... 
Cirrostratus 
10 
Cirrostratus 
10 
3-o 
2-5 
30 
2 5 
3-2 
30 
30 
3-8 
Clear 
3 
0-4 
To 
1-0 
1-4 
1-4 
1-2 
1-8 
10 
Cirrostratus 
10 
4 
... 
31 
30 
31 
11 
31 
2-6 
2-8 
3-8 
b-5 
i-5 
1-9 
Cirrostratus 
10 
H. 
0 
0-5 
4-3 
3-0 
1-5 
05 
0-3 
0-5 
-b-3 
10 
0*5 
0-5 
-0 5 
Cirrostratus 
10 
H. 
i-5 
i-3 
1*5 
2-0 
-03 
10 
... 
0-2 
Cirrostratus 
10 
3-5 
3-3 
Cirrostratus 
10 
H. 
3G 
Cirrostratus 
10 
H. 
3-5 
3-4 
Cirrostratus 
10 
Fleecy cl 
10 
Broken cl. 
9 
Cirrostratus 
8 
H. 
... 
Cirrostratus 
10 
H. 
<5 
30 
2-4 
2-9 
2-3 
3-6 
i-6 
Cirrostratus 
10 
1 
4-1 
41 
41 
2 1 
2-6 
31 
Cirrostratus 
10 
H. 
31 
4-0 
... 
3-9 
27 
20 
20 
Clear, nearly 
1 
S. 
2 
... 
Cirrostratus 
10 
Cirrostratus 
9 
Cirrostratus 
10 
Scattered cl. 
7 
3-8 
30 
Clear 
3-8 
3 0 
Clear 
... 
42 
Cirrostratus 
10 
2-3 
Clear 
4-9 
41 
Cirrostratus 
7 
4-6 
Cirrus 
8 
... 
Ciirostratus 
10... 
X. 
i 
Cirrostratus 
iOl 
6-3 
57 
Clear 
Fog 
Vap. 
Vap. 
Vap. 
buiulant in granite ; even' fibre of flax was encrusted with ice, mixed with a few small flakes : raw silk was covered with spikes one-sixteenth of an inch 
o of which emanated from the same pomt, and whose angle of separation was 30° : on blue and yellow wool there were many perpendicular spikes one- 
inch in length : flannel was covered with spikes one-eighth of an inchin length, all of which were inclined to the horizon at an angle of 60°: saw-dust 
utifully covered with spiculae fans, formed by several spikes emanating from the same point at all angles greater than 30° with the horizon ; these 
:onnected with each other by lateral spikes or bands ; the whole forming the appearance of a fan, whose extent was 120°. 
> h 15 m . The observations taken at this time have been inadvertently omitted in subsequent calculations. 
rmn whose heading is “ Direction of Wind,” N. denotes north ; E. east ; S. south ; W. west ; C. calm, and G. gusts. 
