Iohannis Friderici Helvetii vitulus aureus : quem mundus adorat & orat, in quo tractatur de rarissimo naturae miraculo transmutandi metalla ...
A 1677 alchemical treatise by Johann Friedrich Helvetius, printed in Latin for scholars and readers of alchemy, with its text set in dense roman type. The picture is a decorated woodcut initial C with interlaced scrollwork and foliate ornament beside the first lines of the opening paragraph, a good model for historical capital letters and ornamental border work.
