Title: Leurechon, Jean: [On the Camera Obscura]. In: Idem: Mathematicall recreations: or a collection of many problemes extracted out of the ancient and modern philosophers, as secrets and experiments in arithmetick, geometry, cosmographie, horologiographie, astronomie, navigation, musick, opticks, architecture, statick, mechanicks, chemistry, water-works, fire-works etc. London 1653, pp.6-9.


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