Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3758Chemical news office., 1932 |
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Strona 260
... completion of the 69 - inch mirror for the Perkins telescope brings to fruition the plans of the late Professor Hiram Mills Perkins of ten years standing . Professor Perkins , who for many years was Professor of Mathematics and Astron ...
... completion of the 69 - inch mirror for the Perkins telescope brings to fruition the plans of the late Professor Hiram Mills Perkins of ten years standing . Professor Perkins , who for many years was Professor of Mathematics and Astron ...
Strona 261
... completion . of the Perkins telescope . The glass disc was removed from the optical shops at Washington to the factory . of J. W. Fecker , at Pittsburgh , for grinding and polishing . Careful examination of the large disc showed that a ...
... completion . of the Perkins telescope . The glass disc was removed from the optical shops at Washington to the factory . of J. W. Fecker , at Pittsburgh , for grinding and polishing . Careful examination of the large disc showed that a ...
Strona 262
... completion of the 69 - inch telescope brings to a realization a magnificent instru- ment for astronomical research , the possi- bility of which it is confidently believed will bring the contributions to science which Professor Perkins ...
... completion of the 69 - inch telescope brings to a realization a magnificent instru- ment for astronomical research , the possi- bility of which it is confidently believed will bring the contributions to science which Professor Perkins ...
Spis treści
The Story of the Perkins Reflector | 260 |
Decline in U S Phosphates Output | 266 |
Mohlers Test for Benzoic Acid Edward T Illing B Sc F I C | 269 |
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