HERSCHEL, William

--- "Experiments for investigating the cause of the coloured concentric rings, discovered by Sir Isaac Newton, between two object-glasses laid upon one another." #11;--- "Observations on the nature of the new celestial body discovered by D

      London:: Bulmer & Co.,, 1807.. FIRST EDITION. . 4to.. With 12 engraved plates (1 folding), donors list and index. Blue wrappers; an excellent copy mostly uncut and unopened. First edition. Herschel admits that he was never impressed by Newton's explanation of the appearance of the coloured rings when laying two prisms on each other, and proceeds to detail his own experiments. Herschel's expertise in making and using all types of lenses provides a significant amount of support to the results. Herschel's second article, on the communication to him from Dr. Olbers of the discovery of a "new celestial body" is especially interesting, given Herschel's own fame as the discoverer of Uranus.#11;This is the complete Part II of the Philosophical Transactions for the year 1807, and also includes: #11;ALLEN, William, "On the quantity of carbon in carbonic acid and on the nature of the diamond."#11;CARNE, Joseph, "An account of the Relistian tin mine."#11;MARCET, Alexander, "An analysis of the waters of the Dead Sea and the River Jordan."#11;WOLLASTON, "On fairy-rings."#11;HOME, Everard, "Observations on the structure of the stomachs of different animals, with a view to elucidate the process of converting animal and vegetable substances into chyle."#11;BANKS, "On the economy of bees."#11;SCHROETER, John Jerome, "Observations and measurements of the planet Vesta."#11;PEPYS, William Hasledine, "A new Eudiometer, accompanied with experiments, elucidating its application."#11;