Two essays on the nature and wonderful properties of Island Crystal. Essay I. Containing, all that has been hitherto delivered in regard to its form, dimensions, and double refraction of light; with the addition of several new experiments with polished parallelopipeds and prisms made of this substance, which discover a various, multiple, and colorific refraction; and exhibit a variety of images of one and the same object. To which is subjoined, a computation of the magnifying power of reflecting telescopes; and a table thereof, from 6 inches to 12 feet in length. The whole illustrated with copper plate figures. By Benjamin Martin

People / Organizations

• Benjamin Martin (Author)

Imprint

London : Printed for, and sold by the author, at No. 171, in Fleet-Street, [1774?]

Publication year

1774

ESTC No.

T230327

Grub Street ID

250014

Description

[2],16;17,[1]p.,plates ; 8°.

Note

The second section, with separate titlepage, pagination and register, is 'Essay II. on the nature and wonderful properties of island crystal. ...', with same imprint

Both essays could be had separately, the first essay without titlepage

Date of publication based on date of advertisement at the end: Just published, The description and use of an opake solare microscope. ... London: printed for the author, No. 171, in Fleet-Street, 1774

Price on title page: Price 1s. 6d.

Uncontrolled note

For the first essay see t122882, and for the second t230328