Conversations on natural philosophy :
A school physics textbook by Jane Marcet, edited by John L. Blake and issued in Boston by Lincoln & Edmands in 1826, written as dialogues for young students and classroom teachers. Engraved plates group numbered figures on open pages: orbital ellipses with rayed suns, eclipse and phase diagrams, lens refraction paths, pendulums, levers and bare line geometry usable as diagram stock.
