Ornament Details
003120040000150_0
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The use of the ge-organon and improved analemma, or substitutes for the terrestrial and celestial globe. Invented by B. Donne, Teacher of the Mathematics and Natural Philosophy, at Bristol. Price of the Ge-Organon in Sheets 6s. 6d.; but if fitted up with moveable Hour Circles, &c. 10s.Of the Analemma 3s. 6d. and of this Pamphlet 1s.
published by the author, M.DCC.LXXXVII. Sold also by most of the principal Instrument-Makers in London
15
455
2002