Description | Includes the latitude and longitude of the observatory, observations discussed are from 1860, placement of the barometers, how the mean results were obtained. Refers to the atmospheric pressure, the highest and lowest reading of the barometer. Includes a table of ‘the monthly mean heights of the barometer’ for each month, as well as ‘the monthly range for the year’. Refers to ‘the greatest range within’ 24 hours with a rising column, and falling column.
Discussion regarding the temperature of the atmosphere. Refers to the mean temperature of 1860 and includes a table showing the mean temperature for each month. Refers to minimum cold terms. Includes a table of showing ‘the amount of range or climatic difference for each month of 1860’. Refers to the mean temperature of the winter, spring, summer and autumn quarter.
Discussion regarding the humidity of the atmosphere. Includes a table showing ‘the relative humidity for’ each month in 1860.
Discussion regarding the amount of rain in the year, and includes a table showing the ‘fall of rain in inches on the surface’ for each month. Refers to storms observed.
Refer to snow throughout the year, the evaporation and wind. Includes a table showing the monthly amount of wind in miles.
Refers to ‘the greatest intensity of the sun’s rays’, ‘the lowest point of terrestrial radiation’, clouds, dew, ‘the zodiacal light’, ‘lunar haloes’, ‘parhelia and solar haloes’, and solar spots.
Discussion regarding the ozone, atmospheric electricity, the come of June, the eclipse of the sun, and earthquakes. Lists the birds and flowers seen on the island. |