'Black drop' effect during the 1769 Transit of Venus Size:L: 90 x 60cm Plate 21 figures 7-9 from

Plate 21 figures 7-9 from the paper 'Farther observations on the feet of animals whose progressive motion can be carried on against gravity'

on its opening night in 1821 (1823)

The French may consider Britannia to be an unprotected female

North-west view of Dulwich College

January 24th 1987

'Black drop' effect during the 1769 Transit of Venus Size:L: 90 x 60cm Plate 21 figures 7-9 fromSketch showing the planet Venus at ingress on its passage across the face of the Sun. Detail from a letter by Samuel Horsley, giving an account of the Transit of Venus observed at Oxford, England, using an 18 inch reflecting telescope. The illustration appeared as plate 8 of the published paper 'Venus observed upon the Sun at Oxford, June 3, 1769', by Samuel Horsley, Philosophical Transactions of the Royal Society, vol. 59 (1769) pp. 183 188.