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- Chemical engineering 33
- Universities and colleges--Faculty 18
- Portraits 12
- Laboratories 11
- College buildings 5
- Gleeson Hall 4
- College students 3
- Engineering 3
- College presidents 2
- E.I. du Pont de Nemours & Company 2
- Strand, A. L. (August Leroy), 1894- 2
- Universities and colleges--Employees 2
- Agriculture 1
- Chemistry 1
- Chemistry 1
- Department of Chemical Engineering 1
- Friedman, Leo 1
- Pauling, Linus, 1901-1994 1
- Portraits, Group 1
- Spraying and dusting in agriculture 1
