Periscopic camera obscura William Gould the Proprietor of Bagnigge Wells'

the Proprietor of Bagnigge Wells'

as flag bearer

Southport in Merseyside

Plate 7 from the paper 'Observations on the structure of the stomachs of different animals

Two horses can be seen on the towpath

Periscopic camera obscura William Gould the Proprietor of Bagnigge Wells'Plate 9 from the paper 'On a periscopic camera obscura and microscope', William Hyde Wollaston, Philosophical Transactions of the Royal Society, vol. 102 (1812), pp. 370 377. Five figures sketching basic optical details of a conventional and periscopic camera obscura, periscopic prism of a camera lucida and a periscopic microscope. The work is inscribed above with publication and plate details. Not signed. Royal Society stamp verso. Watermarked 'Ivy