Tractatus de sero lactis
A Latin medical treatise on whey, written by Esteban Rodrigo de Castro and printed in Florence in 1631 by the Sermartelli press for physicians and students. Its pages are dense roman type with italic passages, a historiated initial P, a small decorative tailpiece of stacked ornaments, and marginal side notes, and a designer might take its compact text-block layout, ornamental capitals and printer's flourishes as models for period typography.
