VL Technology [tec2959]

		[Spectacles unknown]
	Source	Anonymous. 1892. Harvard Psychological Laboratory in Dane Hall: Instruments for Experiments on Sight. Photograph. (Harvard University Archives - HUPSF Psychological Laboratories (7))
	People
	Sites	Psychological Laboratory, Harvard University (1893)
	Related Literature	Münsterberg, Hugo. 1893. Psychological Laboratory of Harvard University. Cambridge, Mass.: University Press of Cambridge, Mass. (figure).
	Comment	See a color photograph of a similar device in the Harvard Collection of Historical Scientific Instruments.
	Description
ISSN 1866-4784: reference - xlink