The Description of Two New Micrometers.
Date Published: 1779
Description: By Mr. Ramsden, Optician; Communicated by Joseph Banks. Two large folding plates. Also contains: Fontana, Abbe. Account of the Airs extracted from different kinds of Waters; with Thoughts on the Salubrity of Air at different Places. Swift, William. Account of Some Experiments in Electricity. 2 large folding plates. pp. 419-462. 8vo, modern cloth-backed bds., leather label. n.p., 1779.
Comments: Ramsden work is "...on the double-image principle, one by reflection, the other by refraction..." DNB XVI, p. 709. "Fontana's model of the eudiometer (for measuring the salubrity of air)..." DSB V, p. 57. Philosophical Transactions, vol. LXIX.Edition: First Edition
Condition: very good(+)
Book ID: 130828