Abstract of the Results of the Hourly Meteorological Observation, taken at the Surveyor General's Office, Calcutta, \i Cirri, i Cirro strati, i Cumuli, i Cumulo strati, i Nimbi, -i Strati, hi Cirro cumuli. Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, Max. height of the Barometer occurred at 9 & 10 A. M. on the 25th, 29.885 Min. height of the Barometer occurred at 4 P. M. on the 29th, Mean daily range of the Barometer during the month, 29.640 0.145 Mean Dry Bulb Thermometer for the month, Ditto ditto Min. ditto, Mean daily range of the Temperature during the month, Mean Dry Bulb Thermometer above Mean Wet Bulb Thermometer, Mean Dry Bulb Thermometer above computed Mean Dew-point, Mean Elastic force of Vapour for the month, .. Inches 0.840 Troy grains Mean Weight of Vapour for the month, 8.98 Additional Weight of Vapour required for complete saturation, Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, in the month of April, 1861. MONTHLY RESULTS. Table showing the number of days on which at a given hour any particular wind blew, together with the number of days on which at the same hour, when any particular wind was blowing, it rained. Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, in the month of May, 1861. Latitude 22° 33' 1" North. Longitude 88° 20′ 34′′ East. Feet. Height of the Cistern of the Standard Barometer above the Sea-level, 18.11 The Mean height of the Barometer, as likewise the Mean Dry and Wet Bulb Thermometers are derived from the twenty-four hourly Observations made during the day. |