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"Robert Hooke's Letter of December 9, 1679, to Isaac Newton" "Robert Jameson and the Royal Scottish Museum" Robert Koch, der Schopfer der modernen Bakteriologie "Robert Plot" Robert Ranulph Marett Robert Record, the First Mathematical Educator "Robert Recorde's Mathematical Teaching and the anti-Aristotelian Movement" "Robert Seeley… the Restless Frontiersman" Robert T. Gunther and the Old Ashmolean Robert T. Gunther: A Pioneer in the History of Science 1869-1940 Robert Wilhelm Bunsen Rocenka Technickeho Muzea v Kosiciach, 1968 Roentgen Rays and Phenomena of the Anode and Cathode "Roger Bacon and the Voynich Manuscript" "Roger Bacon" Roger Bacon: Essays Contributed by Various Writers on the Occasion of the Commemoration of the Seventh Centenary of his Birth "Roger Bacon's Gunpowder and His Secret Wisdom" 'Roger Barlow: A New Chapter in Early Tudor Geography' Roger Fenton: The First Secretary of The Royal Photographic Society Roger Joseph Boscovich S. J., F.R.S., 1711-1787: Studies of his Life and Work on the 250th Anniversary of his Birth "Roger Sherman's Field Survey Book: Richard Norwood's Epitome" "Role of the Intellectual in Public Bureaucracy" Rolfe Family Records : 2 entries Roll of commissioned officers in the Medical service of the British army: who served on full pay within the period between the accession of George II and the formation of the Royal army medical corps, 20 June 1727 to 23 June 1898, with an introduction sho Roman and Islamic Water-Lifting Wheels Roman Science "Romer, Flamsteed, and the Search for a Stellar Parallax" Romische Sonnenuhren aus Aquileia "Romische Vermessungskunst: Ihre Instrumente und Verfahren" Rontgen Rays Centennial: Exhibition on the Occasion of the Discovery of X-Rays in Wurzburg on November 8, 1895 Rontgenstrahlen: Zum funfzigjahrigen Jubilaum ihrer Entdeckung "Rosenholm" Rotary Specialities: Price List November, 1908 Rotary Stripping Pigment Films for Three Colours Rotatoria of the United States, with especial reference to those of the Great Lakes "Rothamsted: 1843-1943" "Rotiferes" "Rouget Cells and their Function" Rowland's Double Sextant, and Circle Rowlandson's Oxford Royal Funding of the Parisian Academie Royale des Sciences During the 1690s "Royal Institution Lectures" "Royal Microscopical Society Standards" "Royal Microscopical Society" "Royal Sovereign Pencils" R's Method of Using Ordinary Set Squares in Drawing and Design Rudimenta Mathematica "Rudolph II in Prague" Ruhmkorff, Rontgen, Regensburg: Historische Instrumente zur Gasentladung Rule for measuring Heights by the Barometer, reduced to the English Measure of Length and adapted to Fahrenheit's Thermometer, and other Scales of Heat, and reduced to a more convenient Expression by the Astronomer Royal. Read at the Royal Society January
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