Dissertatio inauguralis sistens metallurgiam morbiferam ...
A Latin medical dissertation by Henningus Joannes Siemens, printed at Halle (Halae Magdeburgicae) in 1695, on diseases caused by metal mining and the gases miners breathed. The pictures are a small printer's ornament, a stylised leafy motif with symmetrical acanthus-like scrolls, and a decorated initial M with a text block set in black-letter type; a designer could take from them the compact vocabulary of baroque ornament and early modern typographic openings.
