Open to 4 pages:  Apparatus, p. 8, apparatus, Fly compound eyes (plate 18).

Adams’ “universal” microscope, shown with a prepared specimen slip, enabled the user to rapidly switch between eyepieces with different magnifications. His “universal double” microscope, shown with an insect specimen, adds another microscope on top of the “universal” microscope.

Adams offers instructions for preparing various specimens and artifacts, including “mites of cheese,” “lice of birds,” and “all the other sorts of little crawling animals.” The common housefly, “grains of sand, seeds of plants, farina of flowers” may be “commodiously examined.” The “little crawling animals, which are so very small that one can hardly touch them without destroying their lives, are best glewed as it were upon the point of a fine sewing needle, dipped in in turpentine.” This will fix the animal in such a way that it cannot remove itself and “they may be examined with ease and pleasure.”

Adams published multiple editions of his Micrographia Illustrata with slight changes or additions to the text, yet utilizing many of the same plates and figures.