Subjects
- Correspondence1
- Cyanotypes1
- Deeds1
- Dye1
- Dye industry -- United States -- History1
- Dyes and dyeing1
- Education, Higher -- New York (State) -- New York1
- Educators1
- Engravings (prints)1
- Eye -- Diseases1
- Graphs1
- Hospitals -- New York (State) -- New York1
- Journals1
- Lectures and lecturing -- New York (State) -- New York1
- Medals1
- Notebooks1
- Ophthalmologists1
- Ophthalmology -- Research1
- Ophthalmology -- Study and teaching1
- Photographic chemistry1