A system of natural philosophy, designed for the use of schools and academies (1845)
Moffat, J[ohn] M. [from old catalog] · Philadelphia, E. C. Biddle · leaf 43
by experimentsmade for that particular purpose, the validity of the cause assign-ed. King George III. therefore was induced to send the Astro-nomer Royal, Dr. Maskelyne, to Scotland, in 1772, to make How may a comparison be made between tbe whole mass of the earthand an isolated portion projecting… … RAVITATIVE ATTRACTION OF MASSES. 41
Physics
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