Galgemair (Georg) Organon logikon, Frankfurt, Johann Weh, 1654.

Galgemair (Georg) Organon logikon, fine woodcut title, 4 folding engraved plates, one with short tear, woodcut illustrations, one with folding flap on C4, 2 leaves working loose, some foxing, browning and light water-staining, late 17th century ownership inscription on front free endpaper, later marbled boards, worn, folding cloth drop-back box, [Tomash & Williams R72], 4to, Frankfurt, Johann Weh, 1654.

⁂ On the construction and use of three different instruments, a proportional compass, and two types of sector.

Provenance: Johan Wilhelm ?Vigniltzon, 1699 (signature on front free endpaper).