London, Hatton Garden, 1820. Contains numbers 218 to 222 (June to November 1820) but bound with the wrong title page, dated 1815, and the volume number on the title page altered from 27 to (correctly) 37 by the insertion of an X in the roman numerals. 8vo. (20x12.5cm), title page + 384 pages + 19 engraved plates (4 of them folding plates). Light foxing, particularly to the first few pages and the edges of the plates, the type showing through the paper on some pages. A previous owner ’ s inscription on the front endpaper, a few marks on the title page. Plates 16 to 18 bound after plate 19, in reverse order. Bound with mottled-brown leather spine and corners, the boards covered in marbled paper; the spine with a red leather label with the title in gold, seven gold bands and the volume number in gold. The binding very slightly rubbed but in exceptionally good condition.
The title page continues,
‘ Consisting of Original Communications, Specifications of Patent Inventions, Practical and Interesting Papers, selected from the Philosophical Transactions and Scientific Journals of All Nations. Intelligence Relating to the Useful Arts … Notices of All Patents Granted for Inventions. ’
This volume includes details of patents concerning; Navigation (a perpetual sea log), 4 pages with plate; Horology (improvements to the pendulum in public clocks), 3 and a half pages with woodcut; Jewelry (fabrication of artificial coloured stones), 9 pages; Lock making (improvements in locks and latches), 6 pages with illustration and many other inventions.