Salzburg: Joannis Josephi Mayr, 1711. NF. Three folio volumes dated 1711 and 1712. These volumes constitute the third edition, so stated on the title page. All three volumes re-bound in full leather with spine label lettered in gilt. Six compartments. Title pages lettered in black and red. An extremely clean and solid copy. Sporer's volumes are now extremely scarce. Sporer lived in Bavaria. He entered the Order of Friars Minor and eventually taught theology, earning the title of Lector Jubilatus. Sporer was in his time, and remains today, a very well regarded moralist.