London: 1821. hardcover. 24 engraved plates. 7 vols. 18mo. Contemporary 1/2 black morocco, marbled boards (rubbed). London: Baldwin, Cradock, & Joy, 1821. Very good. very good.
Ambitious guide for Regency youngsters, the volumes covering Mechanics, Astronomy, Hydrostatics, Pneumatics, Optics & Magnetism, Electricity, and Vol. VII, dated 1824 the "Companion" of examination questions, etc. New Edition, with Additions & Improvements.