Nature, Količina 100Sir Norman Lockyer Macmillan Journals Limited, 1917 |
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Stran 345
... potash felspar , potash mica , and the vast number of zeolites and other silicates which make up much of the rock - forming material . Felspars are , in fact , the most abundant mine- rals in the earth's crust , constituting , according ...
... potash felspar , potash mica , and the vast number of zeolites and other silicates which make up much of the rock - forming material . Felspars are , in fact , the most abundant mine- rals in the earth's crust , constituting , according ...
Stran 346
... potash salts occurring irregularly mixed with rock - salt . The potash compounds consist of carnallite and sylvine in layers of an intense red colour , with alternate reddish layers of common salt . The richest zones appear to follow ...
... potash salts occurring irregularly mixed with rock - salt . The potash compounds consist of carnallite and sylvine in layers of an intense red colour , with alternate reddish layers of common salt . The richest zones appear to follow ...
Stran 384
... Potash . SIR EDWARD THORPE'S lucid review of the known geological sources of potash ( NATURE , January 3 ) is of absorbing interest to agriculturists , whose industry must be seriously affected by any permanent stinting in the supply of ...
... Potash . SIR EDWARD THORPE'S lucid review of the known geological sources of potash ( NATURE , January 3 ) is of absorbing interest to agriculturists , whose industry must be seriously affected by any permanent stinting in the supply of ...
Vsebina
Wolfs Comet 332 Radial Velocities of Star Clusters Takamine T and S Nitta Measurements in the Ultra | 32 |
Smith B The Chellaston Gypsumbreccia etc 379 Imaginary Quantities | 52 |
Smith Miss E Etched Crystals of Gypsum 218 Tanner Dr J R The Historical Register of the Uni | 173 |
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acid æther Agriculture ammonia appears applied appointed Association Board British cent chemical chemistry coal College colour Committee considerable Council deal Department described direction discussion disease edition effect electric engineering experimental experiments France Geological German given gives Government H. A. L. Fisher illustrated important increase industry Institute interest investigations iron J. J. Thomson Journal laboratory larvæ lectures London magnetic manufacture mathematical means ment method Ministry of Munitions Museum National Physical Laboratory NATURE November observations Observatory obtained October optical organisation paper physical plants practical present problems production Prof Proper Motion published pyrometers recent regard Royal Society scientific Scotland solution South South Africa species stars supply survey technical temperature theory tion University utilisation various W. E. Castle W. H. Young