| Mrs. Marcet (Jane Haldimand), Thomas P. Jones - 1826 - عدد الصفحات: 286
...which are already divergent, still more so. By the assistance of such glasses, therefore, the rays from a distant object, fall on the pupil, as divergent...devise for such persons as have a contrary defect m their sight; that is to say, who are long-sighted, in whom the crystalline humour, being too flat,... | |
| 1832 - عدد الصفحات: 642
...lens being exactly the reverse of a convex one. By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent...image of a distant object back as far as the retina. Those who suffer from the crystalline humour being too flat, apply an opposite remedy : that is to... | |
| 1832 - عدد الصفحات: 640
...assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent ав those from a less distant object ; and, with short-sighted...image of a distant object back as far as the retina. Those who suffer from the crystalline humour being too flat, apply an opposite remedy : that is to... | |
| Ireland commissioners of nat. educ - 1835 - عدد الصفحات: 398
...lens being exactly the reverse of a convex one. By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent...image of a distant object back as far as the retina. Those who suffer from the crystalline humour being too flat, apply an opposite remedy : that is to... | |
| 1836 - عدد الصفحات: 424
...lens, being exactly the reverse of a convex one. By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent...image of a distant object back as far as the retina. Those who suffer from the crystalline humour being too flat, apply an opposite remedy : that is to... | |
| William Martin - 1838 - عدد الصفحات: 368
...lens being exactly the reverse of a convex one. By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent...image of a distant object back as far as the retina. Those who suffer from the crystalline humour being too flat, apply an opposite remedy ; that is to... | |
| Jane Marcet - 1839 - عدد الصفحات: 544
...which are already divergent, still more so. By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent...contrary defect in their sight ; that is to say, in whom the crystalline humour, being too flat, does not refract the rays sufficiently, so that they reach... | |
| George Grant - 1849 - عدد الصفحات: 328
...lens being exactly the reverse of a convex one. By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent...image of a distant object back as far as the retina. Those who suffer from the crystaline humour being too flat, apply an opposite remedy : that is to say,... | |
| Barbara T. Gates - 2002 - عدد الصفحات: 700
...which are already divergent, still more so. By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent...contrary defect in their sight; that is to say, in whom the crystalline humour, being too flat, does not refract the rays sufficiently, so that they reach... | |
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