Clavius (Christoph): Geometria Practica, Rome, ex typographia Aloisii Zannetti, 1604, 4to, first edition, woodcut geometrical diagrams and illustrations, contemporary vellum, covers with two line gilt rule with armorial emblem at the angles and large heraldic lion grasping an arrow in central panel (rather soiled, worn at extremities) [cf. Honeyman 718]; and 11 other 17th and 18th-century geometrical works, 10 in Latin, one in English, by Cataneo, Roger Cotes, Stephen Francis, Vicentius Riccatus, Antonio Hugone and others. (12)