Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, in the month of February, 1864. Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, Max. height of the Barometer occurred at 10 A. M. on the 5th, Mean daily range of the Barometer during the month, Mean Dry Bulb Thermometer for the month, .. Mean daily range of the Temperature during the month, Mean Wet Bulb Thermometer for the month, .. Mean Dry Bulb Thermometer above computed Mean Dew-point, Mean Weight of Vapour for the month, 2.89 0.67 Additional Weight of Vapour required for complete saturation, .. 0.35 S. & W. Total amount of rain indicated by the gauge attached to the Anemo- Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, in the month of February, 1864. 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 March, 1864. 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 Daily Means, &c. of the Observations and of the Hygrometrical elements dependent thereon. The Mean Height of the Barometer, as likewise the Dry and Wet Bulb Thermometer Means are derived from the hourly Observations made during the day. Date. Abstract of the Results of the Hourly Meteorological Observations taken at the Surveyor General's Office, Calcutta, in the month of March, 1864. Daily Means, &c. of the Observations and of the Hygrometrical elements dependent thereon.-(Continued). 123456 66.5 10.7 59.0 0 55 All the Hygrometrical elements are computed by the Greenwich Constants. |