From William Reese Company - Americana, New Haven, CT, U.S.A.
Seller rating 4 out of 5 stars
AbeBooks Seller since 13 July 2006
About this Item
[2]pp. on a folded sheet. In French. Previously folded. Two small holes along folds of blank leaf. Light foxing and tanning. Very good. An entertaining letter written in 1745 by French minister Jean-Frédéric Phélypeaux, Comte de Maurepas, to scientist Henri-Louis Duhamel du Monceau at Versailles requesting on behalf of Gilles Hocquart, the Intendant of New France in Canada, that new thermometers and other scientific instruments be sent to Quebec. The author notes that although the old thermometers were graded to measure temperatures down to -15° on the Réaumur scale, it had in fact only recently been -27° or -28°. Even if the thermometers had been able to measure temperatures that low, according to Maurepas, the cold had caused the measuring liquid inside the instruments to separate permanently, rendering them useless in any event. He therefore asks that four new Réaumur thermometers capable of measuring down to - 35° be sent, along with several astronomical instruments for making navigational observations. Seller Inventory # WRCAM51842
Bibliographic Details
Title: [AUTOGRAPH LETTER, SIGNED, FROM THE COMTE DE...
Publisher: [Paris?]
Publication Date: 1745
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