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The King George III Collection

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In the eighteenth century, science - or 'natural philosophy' as it was then called - caught the attention of two groups of people. For those who moved in fashionable circles, an interest in the new philosophy stemmed from the founding, in 1660, of the Royal Society. The Society's membership included such well-known figures as Sir Isaac Newton, Robert Boyle, Edmond Halley, Samuel Pepys and Christopher Wren. Among a wider public, access to the 'new science' came when experiments carried out at the Royal Society were repeated by lecturers whose courses on mechanics, pneumatics, optics, electricity, magnetism and hydrostatics were open to anyone prepared to pay the necessary fee. For both these groups, experiments using instruments such as air pumps, microscopes and electrical machines provided immediate and convincing proof of scientific ideas.

The Science Museum's King George III Collection is one of the most comprehensive surviving collections of eighteenth-century scientific apparatus. Its diversity is shown by two contrasting groups of apparatus. First, there is the apparatus which King George III commissioned from the instrument maker George Adams in 1761. These instruments were used by the royal family for entertainment and instruction and are expensive and elaborate. Second, there is the apparatus assembled during the 1750s by Stephen Demainbray for use in his lectures to the public. Although this apparatus was designed to demonstrate many of the same principles as that commissioned by the King, it is cheaper, simpler and more hard-wearing. The two collections came together in 1769 when Demainbray took up the post of Superintendent of the Observatory at Kew where the King's scientific instruments were housed. They were removed to King's College, London in the mid-nineteenth century and finally to the Science Museum in 1927.