1. Professor Rudolf B. Schlesinger giving a lecture Collection: Images from the Rare Book and Manuscript Collections Date: Mid 1950s Format: Image Creator: Goldberg, Sol
2. Professor Roald Hoffman giving a lecture to one of his chemistry classes Collection: Images from the Rare Book and Manuscript Collections Date: 1990 Format: Image Creator: Hildreth, Chris (American photographer)
3. Professor Roald Hoffmann lectures to one of his chemistry classes Collection: Images from the Rare Book and Manuscript Collections Date: 1990 Format: Image Creator: Hildreth, Chris (American photographer)
4. Professor Roald Hoffman lecturing to high school students in 200 Baker Lab Collection: Images from the Rare Book and Manuscript Collections Date: 1995-04-11 Format: Image Creator: Harrington, Charles
