Diagrams of the zodiacal light as seen in spring Product:Canvas The sultan's coach is outside

The sultan's coach is outside a temporary reception hall erected in Guildhall Yard

Originally published as part of: Thompson Cooper

from the Traction Avant catalogue

Frontispiece plate to the monograph A short historical account of coffee

Diagrams of the zodiacal light as seen in spring Product:Canvas The sultan's coach is outsideFour diagrams of the appearance of the zodiacal light as it would appear when observed on 21 March at a latitude of 56 degrees south (figures 1 and 2) and at 56 degrees north (figures 3 and 4). The light is shown as lenticular in shape and each diagram is marked with lines of the equator, poles, horizon and ecliptic. Illustration from the unpublished paper 'Attempt to apply instrumental measurement to the zodiacal light', by Charles Piazzi Smyth. The