456 Meteorological Journal for May. 
Numerical Results for the Month. 
Inches. 
Baronintes Maximum 30:23, May Ist—Wind N. 
: Minimum 29°64,  Ditto26th—Wind N.E. 
Range of the mercury. . 0°64. picker. 
Mean barometrical pressure for the month ..... . 30°013 
— for the lunar period ending the 7th inst.. . 29°98 
for 17 days, with the Moon in North declin. 30-065 
for 13 days, with the Moon in South declin. 29-902 
Spaces described by the rising and falling of the mercury 3-240 
Greatest variation in 24 hours... ...... oie ¥ 2 102540 
Number of changes ..... SR a Fh » 30° 
RileeAtaresce ; Maximum 74°, May 22d.—Wind N. 
Minimum 88 Do. Ist & 6th—Wind N. 
FRSA G i oa aided ieee 36 [& N.E. 
Mean temp. of the external air 55°18 
for 31 days with the : 
Sun in Tisha Mee poe alee 
Greatest variation in 24 hours 28°00 
Mean temp. of spring water : 
at 8 SUlock AMS oA \ * wine 
De Luc’s Whalebone Hygrometer.* 
Degrees. 
yreatest humidity of the air . 65 in the evening of the 7th. 
Greatest dryness of ditto ... 49 in the aftern. of the 8th. 
Range of the index ...... 16 
Mean at 2 o’clock P.M. ... 54:0 
at 8 o'clock ALM. ..: 58°9 
_at 8 o'clock P.M. ... 60°6 
of three observations each 578 
day at 8, 2, and 8 o’clock } 
Evaporation for the month. ........ 4°60 inch. 
Rain in the pluviameter near the ground . 2°275 
Rain in ditto 23 feet high. ......... Q2:115 
Prevailing winds, N.E. and N. 
Summary of the Weather. : 
A clear sky, 7; fine, with various modifications of clouds, 
13; an overcast sky without rain, 7; rain, 4.—Total 31 days. 
Clouds. 
Cirrus, Cirrocumulus. Cirrostratus. Stratus. Cumulus. Cumulostr. Nimbus. 
17 9 Q4 0 24 20 16 
Scale of the prevailing Winds. 
No OE. BSB. BS OS SWe OO ONY, NWS age 
10... JOR a re aS | 2 2+ se°$] 
* For 8 days only, it being under repair. 
A METEORO- 
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