[A scientist studies the composition of an unknown substance by paper chromatography]

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:: 101440832 (See catalog record)
NLM Image ID:: A014450
Permanent Link:: http://resource.nlm.nih.gov/101440832

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