Record

StorageSite	UCL Special Collections
Level	Item
Reference Number	GALTON/2/8/4/4/6
Title	Positive and Negative a and b
Date	c1900
Description	Five glass slides showing images of concentric circles. Annotated "composite of pos. a and neg. b", "pos. b transmuted into pos. a" etc.
Extent	5 slides
AccessStatus	Open
AccessConditions	The papers are available subject to the usual conditions of access to Archives and Manuscripts material, after the completion of a Reader's Undertaking.

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