xlix Meteorological Observations. 
“Abstract of the Results of the Hourly Meteorological Observations 
taken at the Surveyor General’s Office, Calcutta, 
am the month of June 1871. 
Montuty ReEsvtts. 
Inches. 
Mean height of the Barometer for the month.. a 3 ¢29:523 
Max. height of the Barometer cecurred at 9 a. MM. on ihe Ist. je 2ormlel 
Min. height of the Barometer occurred at 5 P.M. on the 22nd. ... 29.342 
Extreme range of the Barometer during the month om a. Ope 
Mean of the daily Max. Pressures... = oe OOD 
Ditto ditto Min. ditto : on ... 29.462 
Meun daily range of the Barometer during the month ... oud Ee 
oO 
Mean Dry Bulb Thermometer for the month ...; nee 0 | eee 
Max. Temperature occurred at 2 p. M. on the Ist. oe eh cn 
Min. Temperature occurred at 1&2 a. M, on the 30th. ane 76.4 
Extreme range of the Temperature ig the month a ee 
Mean of the daily Max. Temperature .. ae a oc) | ae 
Ditto ditto Min. ditto, a 
Mean daily range of the Temperature during the month... eee 7.4 
Mean Wet Bulb Thermometer for the month ... 80.4 
Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer 2.3 
Computed Mean Dew-point for the month 48.8 
Mean Dry Bulb Thermometer above computed n mean Dew- -point .., 3.9 
“Indie 
Mean Elastic force of Vapour for the month .., es se 0.964 
Troy grain. 
Mean Weight of Vapour for the month be » 10.36 
Additional Weight of Vapour required for complete saturation ... 1.36 
Mean degree of humidity for the month, complete saturation being unity 0.88 
oO . 
Mean Max. Solar radiation Thermometer for the month ,,, 135.8 
Inches. 
Rained 28 days,—Max. fall of rain during 24hours ... o, 4,04 
Total amount of rain during the month . 25.35 
Total amount of rain indicated by the Gauge* attached to the anemo- 
meter during the month wat a 2 
Prevailing direction of the Wind. bee << % S& S 8 Ww. 
* Height 70 feet 10 inches above ground. 
