Spectacle de la nature [electronic resource] : or, nature delineated; being philosophical conversations. ... a complete course of natural and experimental philosophy, calculated for the instruction of youth, ... Translated from the original French, / by John Kelly, ... D. Bellamy, ... and J. Sparrow, ... The whole embellish'd with a great variety of copper-plates, ... The fourth edition, with large additions, ... and a general copious index to each volume. Vol. I