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Astronomical Telescopes1

    Naturevolume 42pages183187 (1890) | Download Citation

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    Abstract

    BEFORE speaking of the enormous instruments of the present day, with their various forms and complicated machinery, it will be well to give some little time to a consideration of the principles involved in the construction of the telescope, the manner in which it assists the eye to perceive distant objects, and in a brief and general way to the construction and action of the eye as far it affects the use of the telescope, all as a help to consider in which way we may hope to still further increase our sense of vision.

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    https://doi.org/10.1038/042183a0

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