Philosophical Transactions of the Royal Society of London, Volume 103W. Bowyer and J. Nichols for Lockyer Davis, printer to the Royal Society, 1813 |
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Pagina
... length of time to be intermitted . And this seems principally to have been done with a view to satisfy the Public , that their usual meetings were then continued , for the improvement of knowledge , and benefit of mankind , the great ...
... length of time to be intermitted . And this seems principally to have been done with a view to satisfy the Public , that their usual meetings were then continued , for the improvement of knowledge , and benefit of mankind , the great ...
Pagina 33
... length the near sightedness becomes so considerable , as to be rendered seri- ously inconvenient and afflicting . It should be remembered , that , for common purposes , every near sighted eye can see with nearly equal accuracy through ...
... length the near sightedness becomes so considerable , as to be rendered seri- ously inconvenient and afflicting . It should be remembered , that , for common purposes , every near sighted eye can see with nearly equal accuracy through ...
Pagina 34
Royal Society (Great Britain). in succession , until at length it will be difficult to obtain a glass sufficiently concave to afford the assistance that the eye requires . * Although near sightedness is in general gradual in its pro ...
Royal Society (Great Britain). in succession , until at length it will be difficult to obtain a glass sufficiently concave to afford the assistance that the eye requires . * Although near sightedness is in general gradual in its pro ...
Pagina 38
... length of the optometer , which was twelve inches . * He could see the image of a candle • The two lines that are perceived on looking through the slits of an optometer , cross each other precisely in the point from whence the rays of ...
... length of the optometer , which was twelve inches . * He could see the image of a candle • The two lines that are perceived on looking through the slits of an optometer , cross each other precisely in the point from whence the rays of ...
Pagina 41
... length of the axis of the eye from the cornea to the retina , and the greater or smaller degree of convexity in the crystal- line humour , must be also regarded , before the distance of accurate vision can be determined . It is no less ...
... length of the axis of the eye from the cornea to the retina , and the greater or smaller degree of convexity in the crystal- line humour , must be also regarded , before the distance of accurate vision can be determined . It is no less ...
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