Genre
- photographs117
- black-and-white photographs85
- black-and-white negatives35
- negatives (photographs)35
- color photographs33
- field notes33
- journals (accounts)33
- color slides25
- slides (photographs)25
- indexes (reference sources)9
- lists (document genres)7
- maps (documents)2
- photographic postcards2
- postcards2
- scientific illustrations (images)1
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