Essays on the Microscope / Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.

by George Adams

The principal additions are,

Accounts of the latest improvements which have been made in the construction of microscopes, particularly the lucernal.

A description of the glass, pearl, &c. micrometers, as made by Mr. Coventry, and others.

An arrangement and description of minute and rare shells.

A descriptive list of a variety of vegetable seeds.

Instructions for collecting and preserving insects, together with directions for forming a cabinet.

A copious list of objects for the microscope.

A list of Mr. Custance’s fine vegetable cuttings.

With respect to the plates, three new engravings are introduced, viz.

[Plate IV.]	Exhibiting the most improved compound microscopes, with their apparatus.
[Plate XIV.]	Microscopical figures of minute and rare shells.
[Plate XV.]	Microscopical figures of a variety of vegetable seeds.