Black drop effect during the 1769 Transit of Venus Finish:Single View of two street trams

View of two street trams in front of Marble Arch

May Day Parade in Red Square

Demand Thy Life

Possibly the Val di Diano: a pencil reference verso 'page 171 p

Wife-beating

Black drop effect during the 1769 Transit of Venus Finish:Single View of two street tramsViews of the teardrop effect observed during transit as Venus is near the solar edge. Four figures of the event seen by Hirst using a 2 foot long reflecting telescope to x55 magnification. Inscribed in ink above 'XI p. 229'. Not signed. The illustration corresponds to figures 5 8 on plate 10 and 11 of the published paper 'Account of several phaenomena observed during the Ingress of Venus into the solar disc' by William Hirst, Philosophical