4to, pp. 17; a single wormhole throughout; manuscript presentation note ‘al ... Prof. [?] Amici ... dell’autore’ on blank original wrappers, uncut and opened.
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Observations microscopiques sur les mouvements des globules végétaux suspendus dans un menstrue.
An extremely rare offprint from the Memorie della Reale Accademia delle Scienze di Torino on Brownian Movement and a contribution to the ‘heated controversy with the best known botanists of the world [started by the] discovery that made [Amici] famous ... that of the fertilization of phanerogams, particularly the travel of the pollen tube through the pistil of the flower (1821)’ (DSB). Botto quotes scientists from Buffon and Needham to Brown and Herschel. He was professor of physics at the University of Turin and a member of the Reale Academia. He published several works on physical and chemical problems.
Only one location in NUC, John Crerar Library; not in OCLC.
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Charles Scowen arrived in Ceylon around 1873 and was initially an assistant to R. Edley, the Commission Agent in Kandy before opening a photographic studio around 1876. By 1885 his photography firm had studios in Colombo and Kandy. Scowen was a later arrival to Ceylon than Skeen and his work is less well-known, but: ‘Much of Scowen’s surviving work displays an artistic sensibility and technical mastery which is often superior to their longer-established competitor. In particular, the botanical studies are outstanding…’ (Falconer, J. and Raheem, I., Regeneration: a reappraisal of photography in Ceylon 1850 –1900, p. 19). In the early 1890s the firm was being run by Mortimer Scowen, a relative of Charles Scowen. By about 1894 the firm’s stock of negatives had been acquired by the ‘Colombo Apothecaries Co Ltd’. This print is likely to have been made in the 1890s from negatives made earlier.
Experiments and observations made in Britain in order to obtain a rule for measuring heights with the barometer.
First separate edition of these papers, read at the Royal Society the previous year, by one of the outstanding surveyors of the eighteenth century. Roy’s principal aim is the correction of errors in the observations of Deluc, published in the Philosophical Transactions in 1771, and the work is a prime example of the painstaking accuracy of Roy’s measurements. The barometer depicted in the first plate is ‘Mr. Ramsden’s portable barometer.’ The map is a ‘Plan of the triangles made use of for obtaining the geometrical distance and altitude of Snowdon and Moel Eilio with respect to the sea at Carnarvon.’