M eteorological Observations. Ixv 
Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor Geueral’s Office, Caleutla, 
in the mouth of August 1871, 
Monruty Resutrs. 
Thelies. 
Mean height of the Barometer for the month.. .. 29.603 
Max. height of the Barometer oceurred at 10.4. M. on the 81st. ... 29.859 
Min. height of the Barometer occurred at 4p. a. on the Sth. ... 29.359 
Extreme range of the Barometer during the month nig ... 0.600 
Mean of the daily Max. Pressures... ar a, ws 29.604 
Ditto ditto Min. ditto ee 5 29.515 
Mean daily range of the Barometer during the ‘month is: ave 2 O11 68 
oO 
Mean Dry Bulb Thermometer for the month : 82.9 
Max. ‘Temperature occurred at 2 p. M. on the 11th. 91.3 
Min. Temperature occurred at 5 & 6 4. M, on the Ist. 7.5 
Iatreme range of the Temperature during the month 13.8 
Mean of the daily Max. '‘lemperature .. 87.3 
Diito — ditto Min. ditto, 80.0 
Mean daily range of the Temperature during the month.. 7.3 
Mean Wet Bulb Thermometer for the month... 80.5 
Mean Dry Bulb Thermometer above Mean Wet Bulb The -rmometer 2.4 
Computed Mean Dew-point for the month : 78.8 
Mean Dry Bulb Thermometer above computed u mean Dew- -point . 4.1 
ocls. 
Mean Elastic force of Vapour for the month .,., Ris .. 0.964 
Troy grain. 
Mean Weight of Vapour for the month : .. 10.36 
Additional Weight of Vapour required for complete saturation ... 1.43 
Mean degree of humidity for the month, complete saturation being unity 0.88 
° 
Mean Max. Solar radiation Thermometer for the month ,.. 140.6 
Inches. 
Rained 28 days,—Max. fall of rain during 24 hours... or 209 
Total amount of rain during the month ean LOL 
Total amount of rain indicated by the Gauge* attached to the anemo- 
meter during the month , a ae 0.68 
Prevailing direction of the Wind.. Ft SSW. & ‘S. W. 
* Height 70 feet 10 inches above ground. 
