Components of a microscope, 1776.

Plate from 'Mikroskoopische Vermaaklykheden', or 'Microscopic Delights of the Mind and Eye', a Dutch edition of a book written by the German microscopist Martin Frobenius Ledermuller (1719-1769) in 1760. Ledermuller was a government beekeeper and amateur microscopist who was particularly interested in adapting camera obscuras to operate as solar microscopes so that he could closely observe insects.