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- Architecture, American 60
- Architecture--United States 60
- Oregon State University. Marine Science Center 49
- Universities and colleges--Faculty 25
- Hatfield Marine Science Center 24
- Coasts--Oregon 21
- Bridges 20
- Lighthouses 13
- Laboratories 11
- Bays 10
- College buildings 10
- Research vessels 10
- Civilian Conservation Corps (U.S.) 9
- Marine aquariums 8
- Natural Views 7
- Ocean 7
- Seascapes and Landscapes 7
- Agronomic Crop Science 6
- Cowan, J. Ritchie (John Ritchie) 6
- Fisheries and Wildlife 6