 | Mrs. Marcet (Jane Haldimand), Thomas P. Jones - Physics - 1826 - 286 pages
...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,... | |
 | Physics - 1832 - 642 pages
...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... | |
 | Physics - 1832 - 640 pages
...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 - 398 pages
...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... | |
 | Readers (Elementary) - 1836 - 424 pages
...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 - Readers - 1838 - 368 pages
...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 - 544 pages
...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 - Knowledge and learning - 1849 - 328 pages
...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 - Literary Collections - 2002 - 700 pages
...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... | |
| |
By the assistance of such glasses, therefore, the rays from a distant object fall on the pupil as divergent as those from a less distant object ; and, with short-sighted people, they throw the image of a distant object back as far as the retina. 