$6Q Messrs Coldstream and Foggo's Meteorological 
3. Humidity. Fahr. Ther. 
Mean difference during the month between the two Ther- 
mometers, 6°.970 
Maximum ditto, 14.700 
Minimum ditto, .. 0.000 
4. Rain, 0.07 of an inch. 
5. Winds, N. 1, NE. 1, E. 11, SE. 2, &. 4, SW. 1, 
W. 4, NW. 1, Var. G days. 
Remarks, 
This month has been particularly remarkable for the prevalence of un- 
usually high temperatures, and a long continuance of dry weather. Winds 
very variable, both in direction and strength $ pressure high. 
8th — The morning of this day was clear, and the sun shone very brightly. 
About noon, a thin sheet of cirro-stratus formed in the zenith, which did not 
sensibly diminish the effect of the solar beams, neither could it be easily per- 
ceived ; but its existence was rendered evident by the appearance of a coloured 
halo , which remained till about 3 o’clock. The halo consisted of two bands of 
colours, one of which was quite circular, and the other elliptical. The first 
bad a diameter of about 45°, which was also the perpendicular diameter of the 
latter ; while its horizontal diameter was about 56°. At the two points north 
and south of the sun, where the bands coincided, they were very vivid, and at 
one time assumed quite the appearance of parhelia. The intensity of the co- 
lours diminished in both towards the east and west, and in these quarters it 
was that the halo first began to fade. It had entirely disappeared at 4 p. m. 
Ther. 59°.0. Sol. Rad. 45°. Bar. 30,08, falling. Wind E. moderate, 
18^.— High temperatures have prevailed during the last week, with sou- 
therly winds, and very little rain. The mean minimum temperature of the 
week was 57°.213 ; the^mean maximum, 74°.350. On two days, the 14th and 
17th, the thermometer rose to 79°.5 in the shade. Pressure variable. 
On the 17th, the thermometer in the sun at 11 a. m. stood at 125°.5. This 
day the following observations were made: Bar. 30,15 ; Dew-point nearly eta- 
tionary at 54°. 
Ther. in shade. 
In sun. 
Difference. 
- 
0* A. M. 
65°.0 
119°.0 
54°.0 
Clear dark sky. 
9 30' 
G6.0 
127.0 
61.0 
Sauss. cyan. 17°. 
10 
68.0 
132.0 
64.0 
Strati on E. of Forth. 
10 30 
69.0 
133.0 
64.0 
Clear, fine* 
11 
69.0 
135.0 
66.0 
Ditto* 
1 P. M. 
70.0 
120-5 
60.5 
East wind, brisk. 
2 
70.0 
125.0 
65.0 
Clear, fine. 
3 
70.0 
125.0 
65.0 
*.» 
20 ^/ 2 .— This day, at boon, the hygrometrical thermometers indicated a state 
of perfect saturation. At the moment of observation, the sky was quite clear 
in the zenith, but cumulated cirro-strati prevailed in other quarters* Tempe- 
rature 59°. In the afternoon it rose to 65°, and then the dew-point was found 
tb be 62°. Wind E. At night, the wind veered to S. Barometer rose from 
