relation: https://calteches.library.caltech.edu/213/ title: Engineering and Science, Volume 4:2, December 1940 subject: Complete Issues publisher: California Institute of Technology contributor: Colvin, Hugh F. date: 1940-12 type: Journal Issue type: PeerReviewed format: text/html language: en rights: other identifier: https://calteches.library.caltech.edu/213/1/Contents.html format: application/pdf language: en rights: other identifier: https://calteches.library.caltech.edu/213/2/ES4.2.1940.pdf identifier: Engineering and Science, Volume 4:2, December 1940. [Journal Issue] https://resolver.caltech.edu/CaltechES:4.2.0 relation: https://resolver.caltech.edu/CaltechES:4.2.0 relation: CaltechES:4.2.0