Optical essays, Containing, I. A practical description of the several sorts of single, solar, and compound microscops; with their apparatus, and latest improvments. II. The nature of vision in insects demonstrated by microscopic observations. III. A catalogue of all principal microscopic objects. IV. The use of the reflecting telescope as an universal perspective for viewing every sort of object in the greatest perfection. V. The manner of computing the magnifying power in single and double microscopes. VI. A new method of applying a micrometer to take the dimension: of small objects. VII. An illustration of the whole in a great variety of figures on a large copper-plate. By B. Martin

People / Organizations

• Benjamin Martin (Author)

Imprint

London : Printed for, and sold by the author in Fleet-Street, [1761?]

Publication year

1761

ESTC No.

T10172

Grub Street ID

155576

Description

[2],ii,50,5,[1]p.,plate ; 8°.

Note

With a 5-page catalogue of Martin's books and instruments at the end

Below imprint, in square brackets: Price 1s. 6d.

Uncontrolled note

GDAs reports 2 folded plates and 1 folded advertisement leaf headed: 'Artificial magnets'