Nature, Volume 100Sir Norman Lockyer Macmillan Journals Limited, 1917 |
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Página 19
... material throughout and with others in which a more expensive and highly refractory material was employed as a lining only . Further progress was also made with investigations into methods of stirring and of melting which shall protect ...
... material throughout and with others in which a more expensive and highly refractory material was employed as a lining only . Further progress was also made with investigations into methods of stirring and of melting which shall protect ...
Página 345
... material . Felspars are , in fact , the most abundant mine- rals in the earth's crust , constituting , according to Dr. Hatch , about 48 per cent . of the whole , the potash felspars forming the predominant propor- tion . Orthoclase ...
... material . Felspars are , in fact , the most abundant mine- rals in the earth's crust , constituting , according to Dr. Hatch , about 48 per cent . of the whole , the potash felspars forming the predominant propor- tion . Orthoclase ...
Página 496
... material and spiritual welfare of the vast human family , which alone confers meaning and dignity upon their task , becomes a matter of utter indifference in comparison with the identification of a diatom or the measurement of the angle ...
... material and spiritual welfare of the vast human family , which alone confers meaning and dignity upon their task , becomes a matter of utter indifference in comparison with the identification of a diatom or the measurement of the angle ...
Índice
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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