Author: Herschel, William
Title: Observations on the Planet Venus.
Description: London, The Royal Society, 1793. 4to (27.2 x 21.0 cm). 20 pp. (numbered 201-219), with a foldout plate on linnen bound in. = A rare original issue of this paper, issued in the Society's Philosophical Transactions for the year 1793 (so not from the later, abridged edition). Disbound. Margins a bit spotted; small library stamp, unfortunately, in the plate, otherwise good.

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