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The description and use of a case of mathematical instruments
Particularly of all the lines contained on the plain scale, the sector, the gunter, and the proportional compasses. With a practical application exemplified in many useful cases of geometry, and plain and spherical trigonometry. The whole illustrated by copper-plate figures. By Benjamin Martin -
An appendix to the New art of surveying
containing A New construction of a pantagraph, Which renders it of universal Use in reducing or enlarging Plans, Drawings, Pictures, Portraits, &c. in Copies bearing any required Proportion to the Original. By B. Martin -
Microscopium pantometricum
or, A New Construction of a Micrometer, adapted to the compound and solar Microscope: shewing by inspection, I. The Magnifying Power of the Object Lenses, and of the Eye-Glasses. II. The Extent of the Field of View. III. The Dimensions of the Real and Apparent Magnitude of small Objects. To which is added, The Description of an Universal Perspective, with a Scale of all its Magnifying Powers. The Whole illustrated by Two Copper Plates. By B. Martin