Meleoro log 'tea I Observa tio ti s . 



xxlii 



Abstract of the Remits 0/ the Hourly Meteorological Observations 



taken at the Surveyor General's OJjice, Calcutta, 



iu the mouth oj March 1873. 



Monthly Results. 



Mean height of the Barometer for tlie month 

 Max. height of the Barometer occurred at 10 \. nr. on the 10th 

 Min. height of the Barometer occurred at 4 p. m. on the 20th 

 Extreme range of the Barometer during (he month 

 Mean of the daily Max. Pressures 

 Ditto ditto Min. ditto 

 Mean daily range of the Barometer during the mouth ... 



Indies. 

 29.860 

 30.030 

 29.701 



0.329 

 29.939 

 2i).792 



0.147 



Mean Dry Bull) Thermometer for the month 

 Max. Temperature occurred at 3 & 4 y. ai. on the 23rd 

 Min. Temperature occurred at G a. jr. on the 10th 

 Extreme range of the Temperature during the month 

 Mean of the daily Max. Temperature 



Ditto ditto Min. ditto, 

 Mean daily range of the Temperature during the month 



o 



79.8 

 99.0 

 63.8 

 3.5.2 

 90.0 

 71.9 

 18.1 



Mean Wet Bull) Thermometer for the month 



Mean Dry Bull) Thermometer above Mean Wet Bulb Thermometer 



Computed Mean Dew-point for the month 



Mean Dry Bulb Thermometer above computed mean Dew-point 



Mean Elastic force of Vapour for the month 



. 71.8 



8.0 



. 66.2 



. 13.G 



Inches. 

 . 0.642 



Troy grain. 

 Mean Weight of Vapour for the month ... ... ... 6.92 



Additional Weight of Vapour required for complete saturation ... 3.83 

 Mean degree of humidity for the month, complete saturation being unity 0.64 



Mean Max. Solar radiation Thermometer for the month 



o 



110.8 



Indies. 

 Pained 4 days. — Max. fall of rain during 21 hours ,., ... ].06 



Total amount of rain during the month ... ... ... 1.18 



Total amount of rain indicated by the Gauge* attached to the anemo- 

 meter during the month ... ... ... , ti 0.98 



Prevailing direction of the Wind ... ,,, S. & S. by E. 



* Height 70 feet 10 inches above ground. 



