Minutes of the stated meeting February 17, 1954
โ Scribed by Henry B. Allen
- Publisher
- Elsevier Science
- Year
- 1954
- Tongue
- English
- Weight
- 103 KB
- Volume
- 257
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Precise Evaluation of Spectacle Lenses With the aid of an instrument developed by the National Bureau of Standards, it is now possible to measure both central and marginal powers of a spectacle lens with accuracy. This instrument, known as the Spectacle Lens Tester, was designed by Dr. F. E. Wa
charge of Engineering at the Philadelphia Electric Company, and just named "Engineer of the Year." Dr. Burlew said that this was a fitting way for The Franklin Institute to participate in the "Engineers' Week" activities. Mr. Irwin's talk, titled "More Power to Delaware Valley," included something