Glass slides and plate negatives of collecting areas and diatoms, 1
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PrintApproximately 116 glass slides and plate negatives possibly used for presentations. Images depict collecting localities (mostly Delaware River), a boat towing for diatoms, collecting equipment, diatoms (under microscope), and animals that feed on diatoms. Many are labeled. Images are undated; life dates of the creator were used.
1897-1979
1897
1979
Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at osiaref@si.edu.
SIA RU007437
Paul S. Conger Papers, 1926-1966
1 box
Smithsonian Institution Archives
Box 3