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The principles of perspective
explained in a genuine theory, and applied in an extensive practice; with the construction and uses of all such instruments as are subservient to the purposes of this science. By Robert Bradberry -
The principles of perspective
explained in a genuine theory, and applied in an extensive practice ; with the construction and uses of all such instruments as are subservient to the purposes of this science. By Robert Bradberry -
The principles of perspective
explained in a genuine theory; and applied in an extensive practice. With the construction and uses of all such instruments as are subservient to the purposes of this science. By Benj. Martin -
An essay on a new construction, of the reflecting telescope, which by means of a scale of magnifying powers, is made on universal perspective. Performing The Office Of I. Of a common Reflecting Telescope. II. Engyscope, for shewing all near Objects. III. A Megalascope, for all the larger Sort of small Objects. IV. A Microscope, for small Objects. V. A Helioscope for making the Sun's Image by Reflection only. VI. A Helioscope by Reflection and Refraction. Vii. A Solar-Disk Microscope. Viii. A Catadioptric Microscope