| Description | Daily readings of external temperature, taken morning and evening, with notes on snowfall [in inches], rain, wind direction and weather [cloud-cover]. With general weather diary observations.
Commencing 'A Register of the Weather kept at Three Rivers'. In pencil: 'by Mr. Barr'. A postscript [p.161] reads: 'These observations were taken from a Thermometer on Fahrenheit's principle & always made before the rising of the sun & in the evening some hours after setting. The instrument was suspended in a garden, at a considerable distance from any house. The letters a & b, signify above & below.'
Previous meteorological journals kept at Montreal by William Barr, for some months of the years 1776-1777 and 1778-1779, were published in the Philosophical Transactions. Barr was styled 'Purveyor to his Majesty's hospitals in Canada'.
Tables generally appear on recto pages only. |