Francis Galton Bibliography: Journal Articles
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Facsimile	Paper	Inventions	1858	A hand heliostat for the purpose of flashing sun signals, from on board ship or on land, in sunny climates.	Engineer, The (October 15) : 292
Facsimile	Paper	Inventions	1858	'A hand heliostat for the purpose of flashing sun signals, from on board ship or on land, in sunny climates.'	Engineer, The (October 15) : 292