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Dec 9, 2016 - Dec 10, 2016
Leotaud, Vincent Magnetologia in qua exponitur nuoa de magneticis philosophia. Mit 1 gestochenen Wappen-Vignette u. zahlreichen Textholzschnitten. Lyon Anisson 1668. - 4° 12, 420 S., 6 S. Prgt. d. Zt. mit hss. RTitel (etwas fleckig). De Backer/S. IV, 1706, 6. Honeyman 1990: "Rare". Mottelay 554. Poggendorff I, 1428 (falsch "1648"). Wheeler Gift 161: "Scholarly work of the French Jesuit on the magnet. Unable to explain declination, p. 201, armed magnets, p. 274, effect of magnets on iron, p. 296, magnetic clock, p. 393." - Erste u. wohl einzige Ausgabe. - Vincent Leotaud (1595-1672) war Jesuit und Mathematiker und erweiterte die Cabeo's aristotelische Magnettheorie "and was the first to have considered magnets as aggregates of small elementaryx magnets with equal directions, though earlier experiments on breaking magnets ought to have suggested this hypothesis long before". (Taton,315) - Teils gebraeunt und etwas fleckig.