The Sight and how to Preserve it |
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Page 8
... sewing , and similar work in the evening . Very soon the same fatigue is noticed after like occupations during the day , when the light is good . After a time , fatigue of the eyes comes on immediately on attempting to read or sew , and ...
... sewing , and similar work in the evening . Very soon the same fatigue is noticed after like occupations during the day , when the light is good . After a time , fatigue of the eyes comes on immediately on attempting to read or sew , and ...
Page 11
... sewing , there is an effort of the eye to focus the rays of light : otherwise they would reach the back of the eye without being brought to a point at all , as seen in the figure above . The reason of this is that rays of light from ...
... sewing , there is an effort of the eye to focus the rays of light : otherwise they would reach the back of the eye without being brought to a point at all , as seen in the figure above . The reason of this is that rays of light from ...
Page 13
... sewing , and every kind of occupation requiring fixation of sight on near objects , this accommodative appara- tus is brought into use . Though involuntary , the accommodation or adjustment of the eyes for near objects is an effort ...
... sewing , and every kind of occupation requiring fixation of sight on near objects , this accommodative appara- tus is brought into use . Though involuntary , the accommodation or adjustment of the eyes for near objects is an effort ...
Page 17
... sewing , and such occupations as require the accommodative apparatus of the eye to be brought into use . The moment the eye tires , the glasses must be removed ; to be replaced again , after a rest of the eyes , when work is resumed ...
... sewing , and such occupations as require the accommodative apparatus of the eye to be brought into use . The moment the eye tires , the glasses must be removed ; to be replaced again , after a rest of the eyes , when work is resumed ...
Page 33
... sewing farther away from the eyes . Then follows more or less fatigue and confusion of sight in reading and sewing in the evening , especially if tired , and it is found comfortable to favour the eyes by frequent rest and change of ...
... sewing farther away from the eyes . Then follows more or less fatigue and confusion of sight in reading and sewing in the evening , especially if tired , and it is found comfortable to favour the eyes by frequent rest and change of ...
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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...
Page 51 - The educational abomination of desolation of the present day is the stimulation of young people to work at high pressure by incessant competitive examinations. Some wise man (who probably was not an early riser) has said of early risers in general, that they are conceited all the forenoon and stupid all the afternoon.
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,
Page 22 - FLS MUSHROOMS AND TOADSTOOLS: How to Distinguish easily the Difference between Edible and Poisonous Fungi. Two large Sheets, containing Figures of 29 Edible and 31 Poisonous Species, drawn the natural size, and Coloured from Living Specimens. With descriptive letterpress, 6s. ; on canvas, in cloth case for pocket, los.
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