Title: [Categories] galton.org [By Date] [By Journal] [By Category] Type:Journal:Year:Month:Day:Volume:Number:Pages:PDF FacsimileCategory:ID: [Back] A hand heliostat for the purpose of flashing sun signals, from on board ship or on land, in sunny climates. Engineer, The Paper Author: Galton, Francis [Bib] Inventions 1858 October 15 292 4 [Uncollected]