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 JULY AND AUGUST, 1837. | Date | Time | Barometer Uncorrected | Att. Ther. | Barometer Uncorrected | Att. Ther. | Diff. of Dry Bulb | External Thermometers | Self-registering | Rate in inches | Direction of the Wind at | |------|------|-----------------------|------------|-----------------------|------------|------------------|----------------------|----------------|---------------|-------------------------| | | 9 o'clock A.M. | Flint Glass | Crown Glass | Flint Glass | Crown Glass | Diff. A.W. P.M. | Fahrenheit | Lowest | Highest | | | | 3 o'clock P.M. | Flint Glass | Crown Glass | Flint Glass | Crown Glass | Diff. A.W. P.M. | Fahrenheit | Lowest | Highest | | | | 9 A.M. | 3 P.M. | | | | | | | | | | | Mean | Mean | | | | | | | | | ### REMARKS - **A.M.** Cloudy—light brisk wind. **P.M.** Fine—light clouds and wind. - Evening, Fine and clear. - Fine—light clouds and haze throughout the day. Evening, Cloudy. - Fine—nearly cloudless—lt. haze throughout the day. Evening, Clty. - A.M. Cloudy—light breeze. **P.M.** Fine—light clouds. Evening, Clty. - A.M. Cloudy—light breeze. **P.M.** Overcast. Evening, Light rain. - **A.M.** Overcast—light wind. **P.M.** Fine—light clouds. Evening, Fine and clear. - Fine—nearly cloudless throughout the day. Evening, Overcast. - **A.M.** Fine—light clouds—light brisk wind. **P.M.** Clty.—light wind. Evening, Overcast. - **A.M.** Fine—light clouds and wind. **P.M.** Nearly cloudless. Evening, Fine and clear. - Fine—clouds—light breeze throughout the day. Ev. Clty. - Overcast—light wind throughout the day. - **A.M.** Overcast—brick wind. **P.M.** Cloudy—light wind. Evening, Overcast—light rain. - **A.M.** Fine—dark threatening clouds—light wind. **P.M.** Overcast—heavy rain. Evening, Fine and clear. - **A.M.** Fine—light clouds—light wind. **P.M.** Overcast—light rain—distant thunder. Evening, Fine and clear. - **A.M.** Fine—light clouds and wind. **P.M.** Clty.—light wind. Ev. Overcast—lt. rain. - **A.M.** Cloudy—light rain and wind. **P.M.** Clty.—light breeze. Evening, Very light rain. - **A.M.** Cloudy—light wind. **P.M.** Fine—clouds. Ev. Overcast—lt. rain. - **A.M.** Cloudy—light wind. **P.M.** Overcast—light rain. Evening, Continued rain. - Fine—light clouds and wind throughout the day. Evening, Cloudy. - Fine—light clouds and breeze throughout the day. Ev. Fine and clear. - **A.M.** Fine—lt. clouds. **P.M.** Cloudy—lt. rain. Ev. Overcast—very light rain. - **A.M.** Overcast—wind abated, although very hazy during night. **P.M.** Cloudy. Ev. Overcast—occasional showers, with occasional rain. Ev. Clty. - **A.M.** Fine—lt. clouds. **P.M.** Cloudy, with occasional rain. Ev. Clty. ### MEAN - **A.M.** 29.009 - **P.M.** 29.079 - **C.** 29.062 --- **Mean Barometer corrected** - **A.M.** 29.009 - **P.M.** 29.079 - **C.** 29.062 ## METEOROLOGICAL JOURNAL FOR SEPTEMBER AND OCTOBER, 1837. | Date | Time | Barometer | Att. Ther. | External Thermometers | Remarks | |------|------|-----------|------------|-----------------------|---------| | | 9 o'clock, A.M. | Flint Glass | Crown Glass | Barometer uncorrected | Att. Ther. | External Thermometers | Self-registering | REMARKS | | | 3 o'clock, P.M. | Flint Glass | Crown Glass | Barometer uncorrected | Att. Ther. | External Thermometers | Self-registering | REMARKS | | 1837 | F | 29.368 | 29.362 | 57.4 | 29.386 | 29.382 | 59.5 | 53 | 05.8 | 56.3 | 59.8 | 50.7 | 62.3 | W | | | S | 29.444 | 29.438 | 58.2 | 29.532 | 29.526 | 59.9 | 52 | 00.8 | 55.4 | 59.7 | 51.2 | 62.0 | .091 | | | O | 29.666 | 29.660 | 59.8 | 29.704 | 29.700 | 59.0 | 49 | 05.1 | 53.4 | 55.8 | 50.3 | 61.2 | .072 | | | M | 29.920 | 29.914 | 56.7 | 29.934 | 29.928 | 58.6 | 50 | 03.5 | 53.0 | 58.2 | 51.2 | 57.3 | .055 | | | T | 29.864 | 29.808 | 57.3 | 29.912 | 29.906 | 58.6 | 52 | 04.0 | 56.6 | 61.7 | 49.3 | 59.7 | | | | W | 30.060 | 30.052 | 55.3 | 30.100 | 30.022 | 57.4 | 50 | 03.7 | 52.0 | 60.7 | 47.6 | 61.6 | | | | T | 29.946 | 29.942 | 58.8 | 29.872 | 29.866 | 60.2 | 52 | 04.4 | 59.3 | 63.3 | 51.3 | 61.6 | | | | F | 29.930 | 29.924 | 59.6 | 29.932 | 29.926 | 60.5 | 54 | 02.5 | 55.5 | 61.9 | 54.5 | 66.0 | .158 | | | S | 29.872 | 29.866 | 61.7 | 29.734 | 29.730 | 62.5 | 55 | 05.6 | 60.8 | 66.8 | 55.5 | 62.2 | | | | O | 29.916 | 29.910 | 64.4 | 29.940 | 29.936 | 64.0 | 56 | 03.7 | 60.2 | 67.2 | 54.7 | 67.3 | .055 | | | T | 29.822 | 29.818 | 64.0 | 29.718 | 29.714 | 64.0 | 59 | 04.0 | 62.5 | 64.4 | 56.2 | 68.0 | | | | W | 29.748 | 29.746 | 60.0 | 29.634 | 29.630 | 63.0 | 55 | 05.0 | 54.1 | 61.0 | 52.0 | 67.0 | .277 | | | T | 29.154 | 29.150 | 61.0 | 29.100 | 29.096 | 62.6 | 58 | 04.5 | 59.8 | 63.0 | 52.2 | 61.6 | .052 | | | F | 29.354 | 29.350 | 58.0 | 29.468 | 29.464 | 61.0 | 53 | 04.5 | 56.0 | 59.2 | 53.0 | 64.0 | .069 | | | S | 29.634 | 29.630 | 59.0 | 29.750 | 29.746 | 58.6 | 52 | 04.5 | 55.5 | 58.4 | 49.8 | 59.5 | .055 | | | O | 30.004 | 30.000 | 56.0 | 29.964 | 29.960 | 57.4 | 52 | 05.0 | 55.0 | 60.6 | 48.5 | 60.0 | .011 | | | T | 30.058 | 30.054 | 59.5 | 30.064 | 30.060 | 62.0 | 58 | 05.5 | 65.5 | 67.7 | 56.0 | 66.0 | | | | W | 30.052 | 30.048 | 62.8 | 30.026 | 30.020 | 64.2 | 60 | 04.8 | 64.6 | 55.7 | 61.5 | 69.7 | | | | T | 30.170 | 30.164 | 63.2 | 30.122 | 30.116 | 65.0 | 60 | 05.9 | 63.4 | 67.8 | 58.8 | 68.3 | | | | W | 30.020 | 30.022 | 65.6 | 29.948 | 29.942 | 65.6 | 61 | 06.0 | 66.3 | 65.2 | 61.2 | 68.5 | | | | T | 29.934 | 29.928 | 62.2 | 29.958 | 29.950 | 64.9 | 56 | 02.7 | 59.2 | 65.6 | 54.3 | 68.4 | | | | F | 30.086 | 30.080 | 63.0 | 30.068 | 30.062 | 64.8 | 58 | 03.6 | 60.5 | 64.2 | 54.3 | 68.7 | | | | S | 30.144 | 30.136 | 64.8 | 30.130 | 30.122 | 62.0 | 55 | 06.4 | 58.3 | 60.2 | 52.9 | 65.2 | | | | O | 30.242 | 30.236 | 62.0 | 30.244 | 30.240 | 59.5 | 50 | 07.3 | 56.7 | 57.3 | 51.8 | 61.2 | | | | T | 30.320 | 30.314 | 58.3 | 30.302 | 30.296 | 58.3 | 51 | 06.2 | 56.2 | 58.2 | 46.5 | 58.4 | | | | W | 30.302 | 30.296 | 57.0 | 30.238 | 30.230 | 58.9 | 50 | 05.2 | 54.2 | 56.2 | 46.4 | 59.3 | | | | T | 30.116 | 30.110 | 54.9 | 30.074 | 30.066 | 57.2 | 49 | 03.1 | 51.2 | 57.6 | 44.4 | 60.2 | | | | F | 30.076 | 30.072 | 55.3 | 30.040 | 30.034 | 55.8 | 50 | 04.2 | 53.4 | 59.3 | 49.4 | 60.2 | | | | S | 30.064 | 30.058 | 55.8 | 30.088 | 30.004 | 56.8 | 50 | 03.9 | 54.9 | 58.7 | 44.4 | 60.2 | | | | O | 29.972 | 29.968 | 55.8 | 29.946 | 29.942 | 57.9 | 51 | 02.9 | 57.3 | 61.7 | 48.0 | 59.6 | | | | MEAN | 29.909 | 29.902 | 59.6 | 29.892 | 29.887 | 60.7 | 53.7 | 04.5 | 57.6 | 61.6 | 51.7 | 63.2 | .895 | --- **Mean Barometer corrected** | Date | Time | Barometer | Att. Ther. | External Thermometers | Remarks | |------|------|-----------|------------|-----------------------|---------| | | 9 A.M. | 29.830 | .. | 29.410 | .. | | | 3 P.M. | 29.322 | .. | 29.804 | .. | --- **Mean Barometer corrected** | Date | Time | Barometer | Att. Ther. | External Thermometers | Remarks | |------|------|-----------|------------|-----------------------|---------| | | 9 A.M. | 30.070 | .. | 30.032 | .. | | | 3 P.M. | 30.063 | .. | 30.025 | .. | ## Meteorological Journal for November and December, 1837 ### Table of Observations | Date | Time | Barometer (uncorrected) | Att. Ther. | External Thermometers | Rain in inches | Wind at 9 A.M. | |------------|----------|-------------------------|------------|-----------------------|----------------|---------------| | | 9 o'clock A.M. | 3 o'clock P.M. | | | | | | | Flint Glass | Crown Glass | Flint Glass | Crown Glass | | | | | | Att. Ther. | | | | | | | Dew Point at 9 A.M. | Dew Point at 9 A.M. | | | | | | | Self-registering | | | | | | | | Fahrenheit | | | | | | | | 9 A.M. | 3 P.M. | Lowest | | | | | | | | | | | | | | | | | | | | ### Remarks - Overcast—light rain—high wind throughout the day. - Very high wind throughout the night. - A.M. Overcast—light wind, P.M. Cidy—it wind, Ev. LL rain. - A.M. Cloudy—light fog and wind, P.M. Fine—light clouds. - Evening, Fine and starlight. - Evening, Fine—cloudless, very light fog throughout the day. - Evening, Fine and starlight. - A.M. Cloudy—light fog, P.M. Overcast—Evening, Light fog. - A.M. Fine—cloudless and wind, P.M. Fine—light clouds and wind. - Evening, Fine—cloudless, very light fog throughout the day. - Evening, Fine and starlight. - A.M. Thick fog, P.M. Fine—cloudless. - Evening, Foggy. - A.M. Thick fog—white frost, P.M. Dense fog. - A.M. Light fog—sharp frost, P.M. Overcast—very light mist. ### Mean Barometer Corrected - 9 A.M.: 29.017 - 3 P.M.: 29.702 - Mean: 29.509 --- **Note:** The table contains detailed meteorological data for each day, including barometric pressure readings, temperature, humidity, and weather conditions.