'The Double Constructed Microscope', 1787.
© Science Museum / Science & Society Picture Library
John Cuff (1708-1772), was a London maker of optical instruments, whose microscopes were amongst the best available in the mid 18th century. In 1743 he introduced a new design of instrument, the double microscope, which became the basic design for most microscopes for the rest of the century. Illustration from 'Essays on the microscope' by George Adams (1750-1795), published in London in 1787. Adams was instrument maker to King George III.