NLM Digital Collections

[Man observing light beams]

Collection:
Images from the History of Medicine (IHM)
Format:
Still image
Copyright:
The National Library of Medicine believes this item to be in the public domain. (More information)
Extent:
1 photoprint.
NLM Unique ID:
101448081 (See catalog record)
NLM Image ID:
A029457
Permanent Link:
http://resource.nlm.nih.gov/101448081