subject – Light
- Chemistry of Combustion and IlluminationEdward Livingston Youmans, 1856
- Decomposition of Light: Structure of the Solar RaysEdward Livingston Youmans, 1856
- Diagram of Sunlight in Various Stages Through a PrismRobert Fludd, 1626
- Electrical Light in Rarefied GasM. Rapine, 1886
- Psychic Lights and ColorsEdwin D. Babbitt, 1878