David Ritchie

Improved Pendulum

Catalogue no: 1511
Dewey No: 681.1124 Subject(s): Courtenay Ilbert Archive
Author(s): David Ritchie
Total pages: 7 Illustrations: 1 Language(s): English Publication date: 1818
Editor: Publisher: Philosophical Transactions of the Royal Society
Dimensions: 210mm x 130mm Condition: Reasonable
Related titles: Related library records:

Pages extracted from this journal and bound separately between card covers.

"The Gold Isis Medal and Thirty Guineas were this Session voted to Mr. D. Ritchie, of Clerkenwell, for an Improved Method Of Giving Motion To A Pendulum."

Main article is in the form of a letter from Ritchie of Northampton-street, Clerkenwell, written Feb. 15, 1818.

Room location: Library Extension Cabinet: F Shelf: 5
Search terms: Pendulums, Precision Timekeeping
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