Engraved capital with armillary sphere, 1556.
© Science Museum / Science & Society Picture Library
Woodcut showing a natural philosopher is using dividers to measure the ecliptic on an armillary sphere. The first letters of sections of books were often placed within a decorative frame together with appropriate subjects. Illustration from 'The castle of knowledge' by Robert Record (1510?-1558), published in London in 1556.