VL Technology [tec2998]

		Excelsior lantern. By Queen, Philadelphia
	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. (description and figure).
	Comment	The "Excelsior" is also shown on another photograph from this set. See a color photograph of a similar device in the Harvard Collection of Historical Scientific Instruments. For a figure in a trade catalog see Queen, 1883, p. 32. For another color photograph see Thomas Greenslade's collection of Instruments for Natural Philosophy.
	Description
ISSN 1866-4784: reference - xlink