Printed notice for two lectures on the structure of the universe to be delivered at Mr Noke's Room, Minister Yard, York by Mr Bartley of London. The first lecture on the solar system is to be illustrated using the Grand Optical Planetarium. The second lecture about eclipses, both solar and lunar, and comets, will be illustrated by the Magnificent Optical Orrery. A proposal of a further four lectures on poetry are advertised at the bottom of the sheet.
© Science Museum / Science & Society Picture Library