FRANKLIN, Benjamin (1706-1790). Autograph manuscript signed ("Franklin" and "B.F."), n.d. A compilation of excerpts from Franklin's writings and the works of other scientists on subjects including moisture in the atmosphere, the phenomenon of light, and the dispersal of heat through the air. Together 5 pages, 4to, each leaf tipped to another sheet, bound in blue morocco stamped in gilt .
FRANKLIN, Benjamin (1706-1790). Autograph manuscript signed ("Franklin" and "B.F."), n.d. A compilation of excerpts from Franklin's writings and the works of other scientists on subjects including moisture in the atmosphere, the phenomenon of light, and the dispersal of heat through the air. Together 5 pages, 4to, each leaf tipped to another sheet, bound in blue morocco stamped in gilt . AN EXCEPTIONALLY RARE FRANKLIN SCIENTIFIC MANUSCRIPT. The first two pages constitute responses to a query from Jonathan Todd, which Todd posed to Jared Eliot (6 March 1753) who passed them along to Franklin. Todd, after reading Franklin's "Physical and Meteorological Conjectures," asked "If the Air can support and take off but such a proportion of water, and it is necessary that water be so taken off from the lungs, how is it we can breathe in air full of Vapours...?" Franklin transcribes the query then makes his response: "The air that has been breath'd has doubtless acquir'd an Addition of the perspirable matter which Nature intends to free the Body from..." The second leaf contains a statement by Franklin on light, and a quote from Noel-Antoine Pluche's Spectacle de la nature (1732). "May not all the Phoenomena of Light be solv'd by supplying universal space fill'd with a subtle static fluid...Nothing is plainer, nothing more agreeable to Scripture, to the History of Creation, to Reason and experience, than to look upon light as an intermediate Fluid" which "conveys the action of our sun to the very Spheres of the Stars..." The third leaf contains extracts from an exchange between Franklin and Cadwalader Colden on the conduction of heat through wind and moisture. "Damp winds," Franklin writes, "tho not colder by the thermometer, give a more uneasy sensation of cold than dry ones. Because (to speak like an electrician) they conduct better, that is are better fitted to convey away the heat from our bodies..." "Dr. Boerhave," Colden wrote Franklin, "in his Chymistry thinks that Heat is propagated by the Vibration of a Subtle Elastic Fluid dispers'd through the Atmosphere and thro all Bodies. S r I. Newton says there are many Phoenomena to prove the existence of such a Fluid." RARE. ONLY ONE OTHER FRANKLIN SCIENTIFIC MANUSCRIPT HAS APPEARED AT AUCTION IN THE LAST 40 YEARS: ("Loose Thoughts on a universal Fluid," 25 June 1784 Sotheby's New York, June 16, 1992, lot 178, $24,000).
FRANKLIN, Benjamin (1706-1790). Autograph manuscript signed ("Franklin" and "B.F."), n.d. A compilation of excerpts from Franklin's writings and the works of other scientists on subjects including moisture in the atmosphere, the phenomenon of light, and the dispersal of heat through the air. Together 5 pages, 4to, each leaf tipped to another sheet, bound in blue morocco stamped in gilt .
FRANKLIN, Benjamin (1706-1790). Autograph manuscript signed ("Franklin" and "B.F."), n.d. A compilation of excerpts from Franklin's writings and the works of other scientists on subjects including moisture in the atmosphere, the phenomenon of light, and the dispersal of heat through the air. Together 5 pages, 4to, each leaf tipped to another sheet, bound in blue morocco stamped in gilt . AN EXCEPTIONALLY RARE FRANKLIN SCIENTIFIC MANUSCRIPT. The first two pages constitute responses to a query from Jonathan Todd, which Todd posed to Jared Eliot (6 March 1753) who passed them along to Franklin. Todd, after reading Franklin's "Physical and Meteorological Conjectures," asked "If the Air can support and take off but such a proportion of water, and it is necessary that water be so taken off from the lungs, how is it we can breathe in air full of Vapours...?" Franklin transcribes the query then makes his response: "The air that has been breath'd has doubtless acquir'd an Addition of the perspirable matter which Nature intends to free the Body from..." The second leaf contains a statement by Franklin on light, and a quote from Noel-Antoine Pluche's Spectacle de la nature (1732). "May not all the Phoenomena of Light be solv'd by supplying universal space fill'd with a subtle static fluid...Nothing is plainer, nothing more agreeable to Scripture, to the History of Creation, to Reason and experience, than to look upon light as an intermediate Fluid" which "conveys the action of our sun to the very Spheres of the Stars..." The third leaf contains extracts from an exchange between Franklin and Cadwalader Colden on the conduction of heat through wind and moisture. "Damp winds," Franklin writes, "tho not colder by the thermometer, give a more uneasy sensation of cold than dry ones. Because (to speak like an electrician) they conduct better, that is are better fitted to convey away the heat from our bodies..." "Dr. Boerhave," Colden wrote Franklin, "in his Chymistry thinks that Heat is propagated by the Vibration of a Subtle Elastic Fluid dispers'd through the Atmosphere and thro all Bodies. S r I. Newton says there are many Phoenomena to prove the existence of such a Fluid." RARE. ONLY ONE OTHER FRANKLIN SCIENTIFIC MANUSCRIPT HAS APPEARED AT AUCTION IN THE LAST 40 YEARS: ("Loose Thoughts on a universal Fluid," 25 June 1784 Sotheby's New York, June 16, 1992, lot 178, $24,000).
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