Phosphorus hermeticus sive magnes luminaris
Phosphorus hermeticus sive magnes luminaris is a Latin alchemical treatise by Christian Adolf Balduin, published in 1675 under the imprint of Georg Heinrich Frommann, held by the C.G. Jung library. The single picture is a decorative printed initial L with foliate scrollwork beside a block of Latin text, a classic device of the period's book typography that a designer could borrow for ornamental capitals and text-led page layouts.
