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Griendel, Johann Franz · 1687

A decorative horizontal headpiece features floral and foliate motifs.
Delineation and description of the author’s newly invented microscope.
A decorative drop cap letter C features foliate scrollwork.Complaints have continued until now regarding microscopes: that they receive too small a space of the circle and require excessive effort for accurate positioning and direction.
To correct this, I have devised a new and entirely different dimension and proportion of lenses. Through this experience, I have learned that this new invention of my microscopes receives more than double the circle and subject matter than those commonly brought here from England, France, Italy, and Belgium.
Indeed, this new microscope of mine exceeds the size of a Nuremberg worker's foot in its circumference.
Regarding the positioning and direction of microscopes, much has hitherto troubled the curious—