Specimen artis rationcinandi naturalis et artificialis ad pantosophiae principia manuducens
A 1684 Latin treatise on natural and artificial reasoning, published in Hamburg and Utrecht by H. Künraht and written by Abraham Johann Kueffelaer for scholars of philosophy and mathematics. Its pages are dense printed columns of trigonometric and astronomical tables, with abbreviations, numerals, and ruled rows, offering a designer a strong model for tabular typographic structure and early modern numerical layout.


