133 
METEEGLOG IGAL REPORT. 
sviutr, Month of October, 1837. 
From observations taken at 9 a.m. and 9 p.m. each dap. 
October, 1857. 
a* 
5-T /?i 
-geo 
£ +* 
£ *2 
« S 
Temperature of Air. 
Motstoke. 
Cloud, 
Winds. 
Remarks 
on 
Weather, etc. 
g 
Uz 
^ rt 
s 
g 
1 
S 
£ 
i ? 
£ 
'H 1 
» I 
4-» • 
t/J ® 
3 to 
| ° 
4-> 
.s 
• 3 , 
0 
Q 
<A 
•1| 
K £5 
C 
01 
K 
w 
£ 
O 
g § 
t* • rt 
0 0 
C 0 
0 u 
03 
1 
2 
3 
4S 
5 
6 
7 
8 
9 
10 
11S 
12 
13 
14 
15 
16 
17 
18S 
19 
20 
21 
22 
23 
24 
251 
26 
27 
28 
29 
30 
31 
30097 1 
•164 
•119 
29- 990 
■974 
•841 
.018 
•800 
•837 
•775 
•847 
•555 
•740 
30- 114 
■186 
29- 994 
30- 082 
•118 
29-971 
•737 
•928 
•799 
•766 
•880 
•980 
30 085 
•218 
•164 
29-981 
•725 
■690 
539 
60- 7 
62-5 
64‘G 
66-9 
61- 3 
62- 4 
58-7 
621 
57- 8 
601 
C0-7 
62-5 
58- 4 
65‘4 
66-0 
01-4 
60-0 
630 
641 
57- 4 
C4-0 
53-1 
56-6 
58- 5 
59- 7 
58-5 
60- 6 
C2'S 
66‘8 
60 5 
68.0 
70-5 
77'8 
72-8 
74-8 
64 7 
70- 2 
67-5 
69-3 
63-3 
67- 3 
71- 5 
71 6 
716 
72- 3 
76-3 
080 
68- 6 
680 
755 
675 
75.2 
655 
64-8 
649 
67'8 
676 
68-0 
70-8 
738 
752 
38-3 
370 
40-4 
45-4 
54-5 
56-3 
520 
550 
491 
54*4 
431 
53- 4 
54- 3 
42-2 
42-6 
403 
54-3 
52-8 
54.6 
coo 
.530 
45'5 
51-8 
433 
41-3 
48- 4 
49- 5 
50- 4 
55-7 
49-9 
563 
29-7 
33-5 
374 
27'4 
20-3 
8-4 
18-2 
12- 5 
20-2 
8-9 
24-1 
18-1 
173 
29-4 
297 
300 
13 7 
15-8 
13- 4 
15-5 
145 
29-7 
13-7 
21-5 
23-6 
19-4 
181 
176 
151 
23-9 
18-9 
44-5 
50-1 
53- 9 
554 
59- 4 
60- 2 
SOT 
50- 5 
54- 2 
51- 5 
■19-3 
52'7 
45‘9 
46-9 
5G-8 
693 
52- 8 
520 
60-5 
61 7 
53- 8 
58-0 
46-2 
43 2 
46T 
50-4 
513 
522 
580 
607 
48-7 
•00 
•00 
•00 
•00 
•09 
1 53 
57 
•09 
■00 
.28 
•00 
•21 
•00 
•OO 
•00 
•00 
•06 
•00 
■35 
•62 
•29 
•OO 
•41 
.14 
‘00 
■00 
•38 
•00 
■24 
.00 
•00 
1 
0 
3 
10 
9 
10 
7 
10 
7 
10 
4 
5 
1 
0 
0 
0 
10 
10 
10 
10 
5 
10 
6 
6 
5 
9 
10 
5 
9 
5 
0 
Cu. 
Ci.-St. 
St.-Ci. 
St.-Ni. 
Cu -Ni. 
St.-Cu. 
St. 
Cu.-Ci. 
Ni. 
Cu. Ci*St. 
Ni. 
Cu.-St, 
Ci. 
Cu. 
Cu. 
Cu. 
Cu.-Ni. 
Cu. 
s r 
1 Cu.-St. 
! Cu. 
Cu. 
Cu 
Cu. Ci.-St. 
Cu. 
Cu. Ci. 
Cu. Ci. St 
S. NNE. 
NNE. 
NE. 
NE. 
Variable 
Variable 
N. WSW. 
SSW. 
NE. 
SW. 
S. NE. 
N. WNW. 
SW. 
SE. 
NNE. 
NNE. 
South 
NNE. 
N.E 
SSE. 
South 
NNE. 
SW. 
SSW. 
SSE. 
East 
East 
NE 
NE. 
NNE. 
West 
1 Pleasant weather, 
j Fresh sea-breezes. 
jloomv and close. 
Partial storm. 
Thunderstorm. 
) Dark clouds and 
j squally winds, 
rhunder. 
Rainy. 
Pine. 
J Squally weather. 
[ Very fine weather, 
f Fresh sea breezes. 
Southerly” squall. 
Cloudy. 
Misty lain all day. 
Threatening clouds. 
Clearing. 
Light breeze. 
j Squalls and showers. 
Fine. 
1 Large cumulose clouds 
j and showers. 
Clearing. 
Remarkable clouds. 
Strong wind. 
30 230 
712 
7V-8 
408 
G4T 
1-53 
10 
H 
isrhest \ of single readings 
' 
29499 
47-0 
37-0 
39-7 
0 
Lowest J at 9 a.m. or 9 p.m. 
29.928 
610 
70-0 
49-4 
20-6 
52-8 
5-26 
•60 
Means and sums. October, 1857. 
30 047 
60-8 
71-7 
495 
22-2 
515 
201 
■50 
Means of October, 1855,1856. 
jj.B._The observations are not corrected for (iinrnal 
rano-e ' The principal instruments have been compared 
at 'Greenwich, and the readings are all reduced ac- 
yh cssH/f.—The barometer is 11 feet above the sea-W 
the greatest range of pressure is .'731 inch_, the 
mean gaseous pressure of dry air is 29'5-o inches. 
■ The average weight of a cubic foot of air is 531 grs. 
Temperature of Air ,—The .mean of all self-registered 
maxima and minima is 59’7 degrees. Tile adopted 
mean temperature of the month from all observations 
is, therefore, the mean of 61 0 and a9'.7, or 60 o 
degrees Fahrenheit. The adopted mean of the month 
foi the two previous years is 608 degrees. 
Moisture .—The dew-point is calculated from readings ot 
Negretti’sand Zambia's dry and wet bulb thermome¬ 
ters. bv the use of Glaisher’s tables. 2ndi Edu. 
The mean temperature of evaporation at 9 a.m. and 
9 n m , is 56'G degrees. The mean elastic force of 
vapour is -'10 inches. The average proportional 
humidity of the air is denoted by 7 6, or }, perfectly dry 
air being taken as 0, and saturated damp air as 100. 
Rain .—More or less rain fell on 14 days during the 
month. The total depth being 5'26 inches. It is 
collected at one foot above the ground, and measured 
at 9 p.m. 
Evaporation —The total depth of water evaporated with 
- ” ire to sun and wind is 4'75 inches. The 
full exposure ••— --- -- 
total evaporation during the previous three months 
(excepting ten days) is 14 71 inches. 
Cloud .—The extent of cloud is expressed by the tenths 
of the whole skv coveted by it. 
The forms of clouds are denoted as follows, the num¬ 
ber of days on which each kind occurred daring 
the montli being added in figures. 
Cumulus 17 Ci-Cu. Cirro-cumulus. ... 0 
Cirrus -6 Ci.-St. Cirro-stratus . 3 
Stratus.6 Cu.-St. Cumulo-stratus ... 2 
Ni. Nimbus,...6. 
Cn. 
Ci. 
St. 
Winds .—The winds may be thus summed up 
W N IV 
West 
WSW 
S IT 
ssw 
South 
SS E 
day 
1 .. 
3 „ 
2 „ 
3 „ 
2 day 
SE 
East 
SE 6J 
N N E 61 
North 1 
Variable 2 
Double Bay, near Sydney, N.S.W. 
W.'S. JEVONS. 
