Case (detail), for demonstration apparatus

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This is a detail of a mahogany case for an apparatus designed by James Ferguson. The apparatus was designed to show the equilibrium between the weight of the wedge and the resistance of the two cylinders. It was made around 1800 and retailed by W. & S. Jones, scientific instrument makers based in London.

The case has an ivory plate on one door reading 'FERGUSONS'. The second plate on the other door is missing, but would have said 'APPARATUS'.

Ferguson described and illustrated apparatus of this sort in his Lectures on Select Subjects, first published in 1770, although it may be an older idea. This particular example appears to have been commissioned from W. & S. Jones by Charles Nicoll Bancker (1778/9-1869), a wealthy Philadelphia insurance and shipping agent, who built up a substantial collection of scientific instruments in the first part of the 19th century.

Record details

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• Online ID: 000-190-002-263-C
• Image Rights Holder: National Museums Scotland
• Project: National Museums Scotland
  Project description   View all records in project
• Ref: National Museums Scotland  T.1984.1
• Date: Around 1800
  C. 1800
  
• Material: Apparatus, Ferguson's / mechanical powers
  
• Dimensions:
• What: Apparatus, Ferguson's / mechanical powers
  
• Subject:
• Who: Ferguson (Eponym)
  W. and S. Jones, 30 Holborn, London (Maker)
  
• Where: England, London
  
• Event:
• Description: Ferguson's mechanical powers apparatus by W. and S. Jones, Holborn, London, c. 1800
  
• References:
  • Adams, George, Lectures on Natural and Experimental Philosophy. Second edition edited by Jones, William: London: 1799, volume III pp 292-3 and pl. iv 
  • Ferguson, James, Lectures on Select Subjects in Mechanics, Pneumatics, Hydrostatics and Optics. 2nd edition. London: 1770, pp 65-7 and plate vi. 
  • Simpson, A. D. C., ' "La plus brillante collection qui existe au monde": A lost American collection of the nineteenth century' in Journal of the History of Collections 7 no 2 (1995), pp 187-96 
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