ScienceJohn Michels (Journalist) 1943 |
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Стр. 89
... observed recently3 and the present results extend these observations to the influenza viruses . It seems very likely from the data presented that virus having been inactivated during the process of cultivation may cause such ...
... observed recently3 and the present results extend these observations to the influenza viruses . It seems very likely from the data presented that virus having been inactivated during the process of cultivation may cause such ...
Стр. 124
... observed stellar parallaxes , a few will come out negative a geometrically impossible result , due to accumulation of observational errors . Most observers are irresistibly tempted to re - observe these stars , and the new series almost ...
... observed stellar parallaxes , a few will come out negative a geometrically impossible result , due to accumulation of observational errors . Most observers are irresistibly tempted to re - observe these stars , and the new series almost ...
Стр. 369
... observation . Dietary sur- veys on the patient and on each member of his family are made by frequently visiting the homes . During such visits , we have observed that the family pets often appear emaciated and weak . Realizing that ...
... observation . Dietary sur- veys on the patient and on each member of his family are made by frequently visiting the homes . During such visits , we have observed that the family pets often appear emaciated and weak . Realizing that ...
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4 | 1 |
Timing Device for Speakers N A WEBER 116 | 14 |
GUNDERSON F L WaterSoluble Vitamins 277 | 19 |
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