Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3758Chemical news office., 1932 |
Z wnętrza książki
Wyniki 1 - 3 z 4
Strona 257
... Perkins Reflector ... The Extended Collinsic of Mirabilite , by Hawksworth Collins , B.A. ... Works and Household Refuse by a Well Known Engineer ... ... Valuable Deposits of Salt in Maritime Provinces , Canada ... Decline in U.S. ...
... Perkins Reflector ... The Extended Collinsic of Mirabilite , by Hawksworth Collins , B.A. ... Works and Household Refuse by a Well Known Engineer ... ... Valuable Deposits of Salt in Maritime Provinces , Canada ... Decline in U.S. ...
Strona 260
... PERKINS REFLECTOR . An account of the Perkins Gift , and the manufacture of the mirror and mounting for the world's third largest telescope . The completion of the 69 - inch mirror for the Perkins telescope brings to fruition the plans ...
... PERKINS REFLECTOR . An account of the Perkins Gift , and the manufacture of the mirror and mounting for the world's third largest telescope . The completion of the 69 - inch mirror for the Perkins telescope brings to fruition the plans ...
Strona 261
... 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 mirror of 69 - inch ...
... 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 mirror of 69 - inch ...
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 |
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acid addition Analysis apparently appeared areas atomic attempt B.Sc base Beds Breccia British cent Chemical coal collected colour combination Company completion compounds consideration construction containing countries deposits described designed direct disc effective elements equipment examination Family Allowances feet four gases given glass greater H₂O heat importance inches in diameter industrial infection interest January known largest late latter less lignite lines liquid London manganese manufacturers March Maritime material measurements Meeting ment metal method mirror mounting necessary Observatory observer obtained occur operation optical oxide oxygen passed Patent Perkins placed possible PREPARATION present production Prof Professor Professor Perkins proportion published refuse replace rhenium rocks salt short tons shows skin SOCIETY spectrum standard steam Stocks Street Sulphur Table telescope tion Trade treated treatment tube United volume