Reference numberMA/3/1
Previous numbersMA.3
TitleMeteorological observations at Toronto [Canada], by Charles James Buchanan Riddell
CreatorRiddell; Charles James Buchanan (1817-1903); British army officer and geophysicist
Date1 January-31 December 1840
DescriptionMonthly meteorological data sheets, January-December 1840, in two parts: form 1 containing uncorrected meteorological observations, form 2 corrected meteorological results. Form 2 containing the corrected data for December 1840 is not present.

Form 1, main table, contains columns of information on: date and Moon; barometer; temperature and dew point; wet bulb thermometer; temperature minimum and maximium, with solar radiation data; temperature of sea or running water; wind direction and gauge; rainfall; electricity; general weather remmarks; latutude and longitude at noon; with a repeated date and Moon column. A secondary table, below, is for uncorrected and corrected hourly observations of the barometer and thermometer on the 21st day of the month [Winter solstice].

Form 2, main table, contains columns of information on: date and Moon; pressure of atmosphere; elasticity of vapour; and temperature (maximum, minimum and mean). A second set of tables, below, presents monthly temperature and pressure in graphical form.

Completed by Lieutenant C.J.B. Riddell, Royal Artillery, Toronto, Upper Canada, with his signature on sheets 1-20; there are no signatures on sheets 21-23.

Each sheet is inscribed: 'Published by Richard & John E. Taylor, Red Lion Court, Fleet Street, London.'; and lower right: 'J. Basire sc.'
Extent46p. [numbered 1-23, rectos contain data, verso pages contain endorsements only]
Physical descriptionInk on paper
Access statusOpen
Fellows associated with this archive
NA7327Riddell; Charles James Buchanan (1817 - 1903)1817 - 1903
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