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The economy of the eyes: : precepts for the improvement and preservation of the sight. Plain rules which will enable all to judge exactly when, and what spectacles are best calculated for their eyes. Observations on opera glasses and theatres, and an account of the pancratic magnifier, for double stars, and day telescopes
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Investigation of the powers of the prismatic colours to heat and illuminate objects; : with remarks, that prove the different refrangibility of radiant heat. To which is added, an inquiry into the method of viewing the sun advantageously, with telescopes of large apertures and high magnifying powers
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487000:0119:40
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Dioptrica nova. : A treatise of dioptricks, in two parts. Wherein the various effects and appearances of spherick glasses, both convex and concave, single and combined, in telescopes and microscopes, together with their usefulness in many concerns of humane life, are explained
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487000:0265
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Dioptrica nova. : A treatise of dioptricks, in two parts. Wherein the various effects and appearances of spherick glasses, both convex and concave, single and combined, in telescopes and microscopes, together with their usefulness in many concerns of humane life, are explained
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487000:0450
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A series of observations of the satellites of the Georgian planet, including a passage through the node of their orbits; : with an introductory account of the telescopic apparatus that has been used on this occasion; and a final exposition of some calculated particulars deduced from the observations
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487000:0119:64
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Experiments for ascertaining how far telescopes will enable us to determine very small angles, and to distinguish the real from the spurious diameters of celestial and terrestrial objects; : with an application of the result of these experiments to a series of observations on the nature and magnitude of Mr. Harding's lately discovered star
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487000:0119:50