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This paper describes the observations made using a large outdoor apparatus, in varying weather conditions, to determine the properties of electricity. The apparatus ?which consisted of an iron wire 370 feet long, raised to 90 feet above the horizon. It came down from a very high room in the castle, where it was fastened to a silken cord six feet long, and was carried from thence to the steeple of the town; where it was likewise fastened to another silken cord of eight feet long, and sheltered from rain: and a large key was suspended from the end of this wire, in order to receive the electrical fluid.? The paper continues to provide eight observations drawn from the performance of the apparatus over the three months of experiments. The item, first read before the Royal Society on December 20, 1753, is a First Edition, extracted and disbound from The Philosophical Transactions of the Royal Society, Vol. 48, For the Year 1753, pages 377-384. This volume of the transactions was published in London in 1754. The pages of the paper are tanned, but the text is clear and easily read. The item is in good condition. The illustrations accompanying this description show the first page and one other page of the paper. Abbe Guillame (William) Mazeas (1720 ? 1775) was elected a Fellow of the Royal Society in 1752 [Wikipedia] Stephen Hales, FRS, DD (17 September 1677 ? 4 January 1761) was an English clergyman who made major contributions to a range of scientific fields including botany, pneumatic chemistry and physiology. He invented several devices, including a ventilator, a pneumatic trough and a surgical forceps for the removal of bladder stones. He was also a philanthropist and wrote a popular tract on alcoholic intemperance. [Wikipedia] James Parsons FRS (1705 ? 4 April 1770) was an English physician, antiquary and author. Born in Barnstaple, he was brought up in Ireland before going to Paris to study medicine. He received his degree from Rheims and in 1736 moved to London to study with the anatomist James Douglas. In 1741 he was elected a Fellow of the Royal Society, and was Assistant Foreign Corresponding Secretary of the Society from about 1750. [Wikipedia]. Seller Inventory # 001636
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