Micrometrical Measures of the Ball and Ring System of the Planet Saturn and Measures of the Diameter of his Satellite Titan, made with the 36-inch Refractor of the Lick Observatory in the year 1895. With some Remarks on Large and Small Telescopes

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Abstract
E. E. Barnard; Micrometrical Measures of the Ball and Ring System of the Planet Saturn and Measures of the Diameter of his Satellite Titan, made with the 36-in