1. A thermopile for measuring radiation;Moll;Proc. Phys. Soc. London, Ser. B.,1923
2. Pyrheliometric apparatus;Abbot;Ann. Astrophys. Obs., Smith. Inst.,1908
3. Standard pyrheliometers;Abbot;Ann. Astrophys. Obs. Smith. Inst.,1913
4. An improved water-flow pyrheliometer and the standard scale of solar radiation;Abbot;Smith Misc. Collect.,1932
5. The silver disk pyrheliometer,;Abbot;Smith Misc. Collect.,1911