Left: Skerryvore Lighthouse. Right: Instructions for making Reflectors (I). [Click on all images to enlarge them.]
Left: Instructions for making Reflectors (II). Right: Mathematical analysis of lighthouse proportions.
Left: Procedure for calibrating most efficient direction of lighthouse beam. Right: Device used in oil-powered illumination of light.
Stevenson, Alan. Account of the Skerryvore Lighthouse, with Notes on the Illumination of Lighthouses. Edinburgh: Asam and Charles Black; London: Longman and Co.: 1848. Internet Archive web version of a copy in the University of Toronto Library. Web. 8 October 2014.
Last modified 8 October 2014