The Sight and how to Preserve it |
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Page 6
... ADJUSTING POWER OF THE EYES CONVERGENCE OF THE EYES RELIEF OF WEAK SIGHT ( ASTHENOPIA ) OVER - SIGHT .. EYE - GLASSES FOR OVER - SIGHT NEAR - SIGHT ( MYOPIA ) .. .. .. SELECTION OF GLASSES FOR NEAR - SIGHT OLD SIGHT .. .. .. PECULIAR ...
... ADJUSTING POWER OF THE EYES CONVERGENCE OF THE EYES RELIEF OF WEAK SIGHT ( ASTHENOPIA ) OVER - SIGHT .. EYE - GLASSES FOR OVER - SIGHT NEAR - SIGHT ( MYOPIA ) .. .. .. SELECTION OF GLASSES FOR NEAR - SIGHT OLD SIGHT .. .. .. PECULIAR ...
Page 13
... adjustment of the eyes for near objects is an effort ; hence the relief that comes from looking up and off from near work , so espe- cially grateful to fatigued and sensitive eyes . CONVERGENCE OF THE EYES . Another factor in the act of ...
... adjustment of the eyes for near objects is an effort ; hence the relief that comes from looking up and off from near work , so espe- cially grateful to fatigued and sensitive eyes . CONVERGENCE OF THE EYES . Another factor in the act of ...
Page 14
... adjusting power . HOW TO RELIEVE OR PREVENT WEAK SIGHT . Persons having a tendency to weakness of sight , or those experiencing unusual fatigue of the eyes in reading , or similar occupation requiring close vision , should carefully ...
... adjusting power . HOW TO RELIEVE OR PREVENT WEAK SIGHT . Persons having a tendency to weakness of sight , or those experiencing unusual fatigue of the eyes in reading , or similar occupation requiring close vision , should carefully ...
Page 18
... adjusting power , or what we call the accommodative power . Notice in this figure that the lens ( L ) is more convex or full than in the other figures . This gives the eye a greater focal power ; just exactly what it needs in looking at ...
... adjusting power , or what we call the accommodative power . Notice in this figure that the lens ( L ) is more convex or full than in the other figures . This gives the eye a greater focal power ; just exactly what it needs in looking at ...
Page 19
... becomes so severe that one finds a darkened. adjusting apparatus for help . It gives us a chance to use the eyes without fatigue . pupil reach the retina at the back before being focussed. C 2 CONVEX GLASSES FOR WEAK SIGHT . 19.
... becomes so severe that one finds a darkened. adjusting apparatus for help . It gives us a chance to use the eyes without fatigue . pupil reach the retina at the back before being focussed. C 2 CONVEX GLASSES FOR WEAK SIGHT . 19.
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Common terms and phrases
30 Coloured Plates accommodative power adjusting power BOTANY BRITISH BIRDS BRITISH BUTTERFLIES brought cataract cinder cloth extra cloth gilt Coloured Figures concave glasses Containing convex glasses Crown 8vo Demy 8vo Descriptions disease distant objects Enlarged enter the eye eye-ball eye-glasses fatigue Fcap FERNS Figures of Eighty FLOWERING PLANTS FLOWERS focus focussing power Fourth Edition HARDWICKE & BOGUE Health HENRY POWER Illustrated with 32 Illustrated with numerous inches J. E. TAYLOR JARDINE Larvæ Lecture lens London look MANUAL Marsupialia MICROSCOPE MORTIMER GRANVILLE muscle of accommodation muscle of convergence myopia NATURAL HISTORY NEAR-SIGHT IN CHILDREN noticed numerous Illustrations numerous Woodcuts oculist old sight pain Piccadilly Plain and Easy Plants PROGRESSIVE NEAR-SIGHT pupil Quarterly R. A. PROCTOR rays of light reach the retina reduced price 16s regard near objects Science Gossip Second Edition seen in Fig Sir WILLIAM JARDINE Species super-royal 8vo Third Edition tion tissues upper lid Vols weak sight Woodcuts
Popular passages
Page 26 - BONAPARTE. NEW AND ENLARGED EDITION, completed by the insertion of above One Hundred Birds omitted in the original Work, and Illustrated by valuable Notes, and Life of the Author, by Sir WILLIAM JARDINE. Three...
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Page 15 - A PLAIN and EASY ACCOUNT of BRITISH FERNS. Together with their Classification, Arrangement of Genera, Structures, and Functions, Directions for Out-door and Indoor Cultivation, &c. Numerous Coloured Illustrations. A New Edition in preparation.
Page 28 - SCIENCE GOSSIP: An Illustrated Medium of Interchange and Gossip for Students and Lovers of Nature. Edited by JE TAYLOR, Ph.D., FLS, FGS, &c.
Page 11 - By HERBERT FRY. Showing, in alphabetical order, their Name, Date of Foundation, Address, Objects, Annual Income, Chief Officials, &c.
Page 9 - THOMAS, THE PREPARATION and MOUNTING of MICROSCOPIC OBJECTS. New Edition, greatly Enlarged and brought up to the Present Time by JOHN MATTHEWS, MD, FRMS, Vice-President of the Quekett Microscopical Club. Fcap. 8vo, cloth, 2s.
Page 22 - Drawing of every British Plant. Edited and brought up to the Present Standard of Scientific Knowledge by T. BOSWELL (formerly SYME), LL.DFLS, &c. With Popular Descriptions of the Uses, History, and Traditions of each Plant, by Mrs. LANKESTEB, Author of " Wild Flowers Worth Notice," " The British Ferns,
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Page 25 - Containing an Alphabetical List of the House of Lords, Dates of Creation, Lists of Scotch and Irish Peers, Addresses, &c. 32mo, cloth, is. Published annually. THE SHILLING BARONETAGE. Containing an Alphabetical List of the Baronets of the United Kingdom, Short Biographical Notices, Dates of Creation, Addresses, &c.
Page 18 - Man. INSECTS, 7 Vols. Introduction to Entomology, British Butterflies and Moths, 2 Vols., Foreign Butterflies and Moths, 2 Vols., Beetles, Bees. FISHES, 6 Vols. Introduction and Foreign Fishes, British Fishes, 2 Vols., Perch Family, Fishes of Guiana, 2 Vols. Fuller Details of these will be found under the authors