Lot 240

Ampere (André-Marie)

Autograph letter signed to Mr. Couppier de Viry, reporting Ampere’s calculations and observations on the position of the new planet, “dist [ance] mean … 2,7677, eccentricity … 0,0791, inclination … 10 ° .37′.4 “, probably referring to the planet Uranus discovered in 1781 by William Herschel. He then recounts his astronomy class and his research in botany before talking about his wife, Julie Carron and closing the letter by saying “I hope that the absence does not prevent you from thinking sometimes of the one who will be always your best friend, and who wishes you all the happiness possible and the time to write to him”, four pages, water staining and tear with loss of text and small restoration, 8vo, Slnd [Bourg-en-Bresse], 1802.

Estimate: £1,200-£1,500