Books by R. T. Elworthy:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Elworthy, R. T. (Reginald Thomas), 1890-: A continuous flow apparatus for the purification of impure helium mixtures (University library, pub. by the Librarian, 1920), also by E. Edwards (page images at HathiTrust)- Elworthy, R. T. (Reginald Thomas), 1890-: Jamin interferometer (University Library, 1920), also by J. C. McLennan and Royal Society of Canada (page images at HathiTrust)
- Elworthy, R. T. (Reginald Thomas), 1890-: Mineral springs of Canada in two parts (Govt. Print. Bureau, 1917), also by John Satterly and Canada. Mines Branch (page images at HathiTrust)
- Elworthy, R. T. (Reginald Thomas), 1890-: The permeability of balloon fabrics to hydrogen and to helium (University Library, pub. by the Librarian, 1920), also by V. F. Murray (page images at HathiTrust)
Find more by R. T. Elworthy at your library, or elsewhere.