Chemical News and Journal of Industrial Science, Tom 144,Wydanie 3758Chemical news office., 1932 |
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Strona 258
... examination of a large number of minerals , declared that the existence of the missing elements was improbable . As late as 1924 Bosanquet and Keeley could find no trace of any new element in pyro- lusite ( MnO2 ) by a method of cathode ...
... examination of a large number of minerals , declared that the existence of the missing elements was improbable . As late as 1924 Bosanquet and Keeley could find no trace of any new element in pyro- lusite ( MnO2 ) by a method of cathode ...
Strona 261
... examination of the large disc showed that a mirror of 69 - inch diameter could be finished from the crude glass , and that to cut it down to the contem- plated size of 61 inches would be a serious waste of skill which might not be ...
... examination of the large disc showed that a mirror of 69 - inch diameter could be finished from the crude glass , and that to cut it down to the contem- plated size of 61 inches would be a serious waste of skill which might not be ...
Strona
... EXAMINATIONS FOR THE ASSOCIATESHIP AND FELLOWSHIP are held at the Institute in January , April and September each year . REGULATIONS for the admission of Students , Associates and Fellows : Gratis . APPOINTMENTS REGISTER . - A Register ...
... EXAMINATIONS FOR THE ASSOCIATESHIP AND FELLOWSHIP are held at the Institute in January , April and September each year . REGULATIONS for the admission of Students , Associates and Fellows : Gratis . APPOINTMENTS REGISTER . - A Register ...
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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