Meteorological Journal, Kept by the Assistant Secretary, at the Apartments of the Royal Society, by Order of the President and Council

METEOROLOGICAL JOURNAL, KEPT BY THE ASSISTANT SECRETARY, AT THE APARTMENTS OF THE ROYAL SOCIETY, BY ORDER OF THE PRESIDENT AND COUNCIL. OBSERVANDA. Height of the Cistern of the Barometer above the plinth at Waterloo Bridge...83 feet 2 inches. _________________ above the mean level of the sea .........................97 feet. Height of the receiver of the Rain Gauge above the court of Somerset House ..79 feet. The External Thermometer is 2 feet higher than the Barometer Cistern. The Thermometers are graduated to Fahrenheit's scale. The Barometer is divided into inches and tenths. The Hours of Observation are of Mean Time, the day beginning at Midnight. The daily observations of the Barometer are not corrected. The monthly means are corrected for capillarity and temperature by the Table contained in Mr. Baily's paper in Phil. Trans. for 1837. ## Meteorological Journal for January and February, 1843 ### Barometer Uncorrected | Time | Barometer Uncorrected | Att. Ther. | Crown Glass | Att. Ther. | Crown Glass | |------------|-----------------------|------------|-------------|------------|-------------| | 9 o'clock A.M. | | | | | | | 3 o'clock P.M. | | | | | | ### External Thermometers | Time | Fahrenheit | Self-registering | Highest | Lowest | Rain at 9 A.M. | |------------|------------|------------------|---------|--------|---------------| | 9 A.M. | | | | | | | 3 P.M. | | | | | | ### Remarks | Time | Remarks | |------------|---------| | 9 A.M. | | | 3 P.M. | | --- **Mean Barometer Corrected** | Time | Barometer Corrected | |------------|---------------------| | 9 A.M. | | | 3 P.M. | | --- **Mean Barometer Corrected** | Time | Barometer Corrected | |------------|---------------------| | 9 A.M. | | | 3 P.M. | | ## Meteorological Journal for March and April, 1843 ### Observations | Date | Time | Barometer (A.M.) | Barometer (P.M.) | Temperature (°F) | Wind | Remarks | |------|------|------------------|------------------|-----------------|------|---------| | | 9 A.M. | | | | | | | | 3 P.M. | | | | | | ### Mean Values | Date | Time | Barometer | Temperature | Wind | Remarks | |------|------|-----------|-------------|------|---------| | | | | | | | ### Additional Notes - **Mean Barometer corrected**: 29.853 - **Mean Temperature**: 54.1°F - **Mean Wind**: None --- **Note:** The table contains detailed meteorological data including barometric pressure, temperature, wind conditions, and remarks for each observation point throughout March and April 1843. ## Meteorological Journal for May and June, 1843 ### Barometer Corrections | Time | A.M. Barometer Uncorrected | P.M. Barometer Uncorrected | |----------|-----------------------------|----------------------------| | 9 o'clock | 29.800 | 29.793 | | 3 o'clock | 29.800 | 29.793 | ### External Thermometers | Temperature | Fahrenheit | Self-registering | |-------------|------------|------------------| | | | | ### REMARKS - **Cloudy**—light wind throughout the day—rain early. - **Ev. Overcast**—light rain throughout the day—very heavy thunder and lightning. - **Ev. Overcast**—light rain—brisk wind throughout the day—very heavy thunder and lightning. - **Ev. Overcast**—light rain with gentle showers throughout the day. - **Ev. Overcast**—light rain—brisk wind throughout the day—very heavy thunder and lightning. - **Ev. Overcast**—light rain with gentle showers throughout the day. - **Ev. Overcast**—light rain—brisk wind throughout the day—very heavy thunder and lightning. ### Mean Barometer Corrections | Time | Corrected Barometer | |----------|---------------------| | 9 A.M. | 29.723 | | 3 P.M. | 29.775 | ### Direction of the Wind | Direction | Remarks | |-----------|--------------------| | N | | | NE | | | E | | | SE | | | S | | | SW | | | W | | | NW | | | NNW | | | NNE | | | NE | | | E | | | SE | | | S | | | SW | | | W | | | NW | | | NNW | | | NNE | | ### Additional Observations - **Fine**—clouds and breeze throughout the day. - **Cloudy**—light wind throughout the day—rain early. - **Ev. Overcast**—light rain throughout the day—very heavy thunder and lightning. - **Ev. Overcast**—light rain with gentle showers throughout the day. - **Ev. Overcast**—light rain—brisk wind throughout the day—very heavy thunder and lightning. - **Ev. Overcast**—light rain with gentle showers throughout the day. - **Ev. Overcast**—light rain—brisk wind throughout the day—very heavy thunder and lightning.