HERSCHEL, William. Three papers extracted from Philosophical Transactions of the Royal Society. London: Bulmer & Co., 1800. 4o. 14 engraved plates. THE DISCOVERY OF INFRA-RED RAYS. PMM 254. Composed of: "Investigation of the Powers of the prismatic Colours to heat and illuminate Objects," "Experiments on the Refrangibility of the invisible Rays of the Sun," and "Experiments on the solar, and on the terrestrial Rays that occasion Heat," (two parts). -- HERSCHEL, William. Further extracts from Philosophical Transactions, [1781-1798]. Many folding engraved plates. Includes: "Account of a Comet," [1781]; "Astronomical Observations on the Rotation of the Planets round their Axes," [1781]; "On the remarkable Appearances at the Polar Regions of the Planet Mars..." [1784]; "Account of some Observations tending to investigate the Construction of the Heavens," [1784]; "Catalogue of Double Stars," [1784]; "On the Construction of the Heavens," [1785]; "On the Discovery of four additional Satellites of the Georgium Sidus," [1798]. -- HERSCHEL, Sir John. Extracts from Philosophical Transactions. London: R. and J.E. Taylor, 1840-1845. Many folding engraved plates. Includes: "On the Chemical Action of the Rays of the Solar Spectrum on Preparations of Silver and other Substances..." 1840; HUNT, Robert, communicated by HERSCHEL, J.F.W. "On the influence of Iodine in rendering several Argentine Compounds, spread on Paper, sensitive to light, and on a new Method of producing...the Photographic Image," [1840]; "On the Action of the Rays of the Solar Spectrum on Vegetable Colours," 1842; "On certain improvements on Photographic Process...and on Parathermic Rays of the Solar Spectrum," 1843; "On a Case of Superficial Colour presented by a homogeneous liquid internally colourless," [1845]. Total 13 extracts. Provenance: Royal Physical Society (ink stamp, for 1781-1785 extracts only); Institutional; from the Library of Haskell F. Norman (bookplates). (13)