Astrolabe.
Hedraeus, Benedictus. ** FE 189.37
Nova et accurata astrolabii geometrici structura, ubi gradus,
horumque singula minuta prima, nec non, quadrantis astronomici
azimuthalis, quo non solum prima, sed & singula minuta secunda
distincté observari possunt. Una cum utriusque usu, claris & perspicuis exemplis illustrato.
—  Lvygdvni Batavorvm, ex officina Wilhelmi Christiani Boxii.
Sumptibus auctoris. 1643. (16), 104, (31) pp. Plates. Dia- grams. Tables. 15 cm., in 8s.
This card was printed at the Boston es Public Library, December 8, 1928.
N5642 — Astrolabe. — Azimuth.