"Optică Sec. 17-18." . . "Optique Ouvrages avant 1800." . . "Reflecting telescopes Early works to 1800." . . "Refraction." . . "Réfraction." . "Great Britain Scotland Edinburgh." . . "Optics and Photonics." . . "Reflection (Optics)" . . "Instrumente optice." . . . . "Geometrical optics Early works to 1800." . . "Reflecting telescopes." . . . . "Catoptricae et dioptricae sphaericae elementa"@en . "Catoptricae et dioptricae sphaericae elementa" . "Dr. Gregory's Elements of catoptrics and dioptrics"@en . . . . . . . "Dr. Gregory's Elements of catoptrics and dioptrics ... : with an introduction" . . . . . . . . . "Elements of Catoptrics and Dioptrics" . . . . . . . . "Catoptricæ et dioptricæ sphæricæ elementa. Auctore Davide Gregorio" . . . . . "Catoptricæ et dioptricæ sphaericæ elementa" . . . . . "Dr. Gregory's Elements of catoptrics and dioptrics. To which is added, I.A method for finding the foci of all Specula as well as Lens's universally. As also for Magnifying or Lessening a given Object by a given Speculum or Lens in any assign'd Proportion, &c. II. A solution of those problems which are left undemonstrated. III. A particular account of microscopes and telescopes, from Mr. Huygens. With an introduction shewing the Discoveries made by Catoptrics and Dioptrics. By W. Browne, A.M. & Med. Pract"@en . . "Catoptricæe et dioptricæ sphaericæ elementa" . . . "Catoptricae et dioptricae sphaericae elementa <engl.>" . . . "Dr. Gregory's Elements of catoptrics and dioptrics. : To which is added, I.A method for finding the foci of all specula as well as lens's universally. As also for magnifying or lessening a given object by a given speculum or lens in any assign'd proportion, &c. II. A solution of those problems which are left undemonstrated. III. A particular account of microscopes and telescopes, from Mr. Huygens. With an introduction shewing the discoveries made by catoptrics and dioptrics"@en . "Catoptricæ et dioptricæ sphæricæ elementa" . . . . "Dr. Gregory's Elements of catoptrics and dioptrics : Translated from the Latin original, with a large supplement, by William Browne" . "Dr. Gregory's Elements of catoptrics and dioptrics To which is added, I.A method for finding the foci of all Specula as well as Lens's universally. As also for Magnifying or Lessening a given Object by a given Speculum or Lens in any assign'd Proportion, &c. II. A solution of those problems which are left undemonstrated. III. A particular account of microscopes and telescopes, from Mr. Huygens. With an introduction shewing the Discoveries made by Catoptrics and Dioptrics. By W. Browne, A.M. & Med. Pract" . "Dr. Gregory's Elements of catoptrics and dioptrics. To which is added, I.A method for finding the foci of all specula as well as lens's universally. As also for magnifying or lessening a given object by a given speculum or lens in any assign'd proportions, &c. II. A solution of those problems which are left undemonstrated. III. A particular account of microscopes and telescopes, from Mr. Huygens. With an introduction shewing the discoveries made by catoptrics and dioptrics"@en . . . . . . "Dr. Gregory's Elements of catoptrics and dioptrics Translated from the Latin original, with a large supplement, by William Browne" . "Dr. Gregory's Elements of catoptrics and dioptrics Translated from the Latin original, with a large supplement, by William Browne"@en . . . . "Dr. Gregory's elements of catoptrics and dioptrics. Translated from the Latin original, with a large number supplement, by William Browne ... To which is added an appendix, by J.T. Desaguliers, containing an account of the reflecting telescopes ... with original letters which passed between Sir Isaac Newton and James Gregory, relating thereunto. Now first published"@en . "Dr. Gregory's elements of catoptrics and dioptrics with an introduction shewing the discoveries made by catoptrics" . . "Dr. Gregory's elements of catoptrics and dioptrics with an introduction shewing the discoveries made by catoptrics"@en . . . "Dr. Gregory's Elements of catoptrics and dioptrics. Translated from the Latin original, with a large supplement, by William Browne ... The second edition. To which is added, an appendix, by J. T. Desaguliers"@en . "Catoptricae et dioptricae sphaericae elementa, auctore Davide Gregorio" . . . . . "Dr. Gregory's elements of catoptrics and dioptrics with an introduction shewing the discoveries made by catoptrics and doptrics"@en . "History"@en . . "History" . . "Elements of catoptrics and dioptrics"@en . "Elements of catoptrics and dioptrics" . "Dr. Gregory's elements of catoptrics and dioptrics [microform] : with an introduction shewing the discoveries made by catoptrics" . "Dr. Gregory's Elements of Catoptrics and Dioptrics. Translated from the Latin Original, With a large Supplement, By William Browne, M.D" . "Dr. Gregory's Elements of catoptrics and dioptrics. Translated from the Latin original, with a large supplement, by William Browne, M.D. To which is added, An Appendix, By J.T. Desaguliers, LL. D.F.R.S. containing, An Account of the Reflecting Telescopes ; and of the Inventors, Improvers, and Imitators of them, till they were brought to Perfection by John Hadley, Esq ; Vice-President of the Royal Society. With Original Letters which passed between Sir Isaac Newton and Dr. James Gregory, relating thereunto. Now First Published"@en . . "Catoptricae et dioptricae sphaericae elementa. Auctore Davide Gregorio, M.D. Astromomiae professore Saviliano Oxoniae, & Societatis Regiae socio" . . . . "Dr. Gregory's Elements of catoptrics and dioptrics Translated from the Latin original, with a large supplement, by William Browne, M.D. To which is added, An Appendix, By J.T. Desaguliers, LL. D.F.R.S. containing, An Account of the Reflecting Telescopes; and of the Inventors, Improvers, and Imitators of them, till they were brought to Perfection by John Hadley, Esq; Vice-President of the Royal Society. With Original Letters which passed between Sir Isaac Newton and Dr. James Gregory, relating thereunto. Now First Published" . "Dr. Gregory's Elements of catoptrics and dioptrics. Translated from the Latin original, with a large supplement, by William Browne ... The second edition. To which is added, an appendix, by J.T. Desaguliers ... containing, an account of the reflecting telescopes ... With original letters which passed between Sir Isaac Newton and Dr. James Gregory, relating thereunto. Now first published"@en . . . . . . . "Catoptricæ et dioptricæ sphæricæ elementa. Auctore Davide Gregorio, M.D. astronomiæ professore saviliono oxoniæ, & societatis regiæ socio" . . . . . . . . . . . "Dr. Gregory's Elements of catoptrics and dioptrics. To which is added... a Particular account of microscopes and telescopes, from Mr. Huygens, with an introduction shewing the discoveries made by catoptrics and dioptrics, by W. Browne" . . . . . . "Dr. Gregory's Elements of catoptrics and dioptrics. Translated from the Latin original, with a large supplement, by William Browne"@en . . . "Dr. Gregory's elements of catoptrics and dioptrics : to which is added, a method for finding the foci and specula, (...)" . . . . "Catoptricæ et dioptricæ sphæricæ elementa. : Auctore Davide Gregorio" . . . . "Early works" . "Early works"@en . . . . . "Refraction Early works to 1800." . . "Réflexion (optique)" . . "Optics Biblical teaching 18th century Early works to 1800 Great Britain." . . "Istoria ştiinţei Sec.17-18." . . "Reflection (Optics) Early works to 1800." . . "Geometrical optics." . . "Òptica Obres anteriors a 1801." . .