398 results
- Books
- Online
The refraction of the human eye : a critical study of the statistics obtained by examinations of the refraction, especially among school children / by B. Alex. Randall.
Randall, Burton Alexander, 1858-1932.Date: [1885]- Books
The use of drugs in refraction / by D. W. A. Mitchell.
Mitchell, D. W. A.Date: 1959- Books
Ophthalmoscopy, retinoscopy and refraction / by W.A. Fisher.
Fisher, W. A. (William Albert), 1859-Date: [1927], ©1927- Books
- Online
On 170 cases of errors of refraction / by William Robinson.
Robinson, William, 1859-1940.Date: 1894- Books
The refraction of the eye : a manual for students / by Gustavus Hartridge.
Hartridge, Gustavus, 1849-1923.Date: 1900- Books
Skiascopy and its practical application to the study of refraction / by Edward Jackson.
Jackson, Edward, 1856-1942.Date: 1896- Books
- Online
The refraction of the eye : a manual for students / by Gustavus Hartridge.
Hartridge, Gustavus, 1849-1923.Date: 1905- Books
- Online
The refraction of the eye : a manual for students / by Gustavus Hartridge.
Hartridge, Gustavus, 1849-1923.Date: 1894- Books
- Online
The refraction of the eye : a manual for students / by Gustavus Hartridge.
Hartridge, Gustavus, 1849-1923.Date: 1886- Books
Elementary lectures on errors of refraction and their correction / by Harold B. Grimsdale.
Grimsdale, Harold B. (Harold Barr), 1866-Date: 1904- Books
The refraction of the eye : a manual for students / by Gustavus Hartridge.
Hartridge, Gustavus, 1849-1923.Date: 1919- Books
- Online
The refraction-changes dependent upon glycosuria / by George M. Gould.
Gould, George Milbrey, 1848-1922.Date: 1907- Books
- Online
The sea officers companion, being an appendix to Waddington's Navigation; (which makes it a complete system of that art) containing several methods of obtaining the latitude of a place either at Sea or on Land, both by Sun and Moon. The Variation of the Needle, Obtained by the Moon. A Table of the Limits of the Times for taking the Altitudes of Sun or Moon, in order to obtain the Latitude from Two Altitudes and the Time Elapsed. The Method of obtaining the Longitude at Sea, and of computing the Observations in a concise and easy Manner. The Nature and Principle of Refraction and Reflection, as Defined by Sir Isaac Newton. Tables of Refraction, and Parallax of the Moon at All Altitudes, illustrated. The Solar System Described. The Method of using Artificial Horizons both at sea and land. The Method of using Artificial Horizons both at sea and land. The Method of Surveying Coasts and Harbours, with Copper-Plate Plans for the Illustration. By R. Waddington, Teacher of Mathematics, Surry-Side, Westminster-Bridge.
Waddington, Robert.Date: M.DCC.LXXVIII [1778]- Books
The eye : its refraction and diseases / by Edward E. Gibbons.
Gibbons, Edward E. (Edward Engler), 1871-Date: 1904- Books
- Online
The refraction of the eye : a manual for students / by Gustavus Hartridge.
Hartridge, Gustavus, 1849-1923.Date: 1884- Books
- Online
Anomalies of refraction and of the muscles of the eye.
Tiffany, Flavel B. (Flavel Benjamin), 1846-1918.Date: 1896- Books
- Online
Diseases and refraction of the eye / by N.C. Macnamara and Gustavus Hartridge.
Macnamara, Nottidge Charles, 1832-1918.Date: 1891- Books
- Online
An essay on a new construction, of the reflecting telescope, which by means of a scale of magnifying powers, is made on universal perspective. Performing The Office Of I. Of a common Reflecting Telescope. II. Engyscope, for shewing all near Objects. III. A Megalascope, for all the larger Sort of small Objects. IV. A Microscope, for small Objects. V. A Helioscope for making the Sun's Image by Reflection only. VI. A Helioscope by Reflection and Refraction. Vii. A Solar-Disk Microscope. Viii. A Catadioptric Microscope.
Martin, Benjamin, 1705-1782.Date: [1775?]- Books
- Online
The psychological influence of errors of refraction and of their correction / by George M. Gould.
Gould, George Milbrey, 1848-1922.Date: 1888- Books
- Online
'Fitting glasses,' the diagnosis of errors in refraction, the influence of eyestrain, etc. / by George M. Gould.
Gould, George Milbrey, 1848-1922.Date: 1906- Books
- Online
Skiascopy and its practical application to the study of refraction / by Edward Jackson, A.M.,M. D.
Jackson, Edward, 1856-1942.Date: 1896- Books
- Online
The relation of incorrect and correct refraction to systemic diseases / by Geo. M. Gould.
Gould, George Milbrey, 1848-1922.Date: 1907- Books
- Online
Anomalies of refraction and of the muscles of the eye / by Flavel B. Tiffany.
Tiffany Flavel B. (Flavel Benjamin), 1846-1918.Date: 1894- Books
Errors of refraction and their treatment : a clinical pocket-book for practitioners and students / by Charles Blair.
Blair, Charles.Date: 1905- Books
Errors of refraction and their treatment : a clinical pocket-book for practitioners and students / by Charles Blair.
Blair, Charles.Date: 1910