ScienceJohn Michels (Journalist) 1943 |
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Page 30
... known that aluminum oxide is one of the 4 U. S. Patents Nos . 1,441,567 and 1,441,568 ( January 9 , 1923 ) . most refractory oxides known and very difficult to reduce to metal . However , there is one reducing agent that will produce ...
... known that aluminum oxide is one of the 4 U. S. Patents Nos . 1,441,567 and 1,441,568 ( January 9 , 1923 ) . most refractory oxides known and very difficult to reduce to metal . However , there is one reducing agent that will produce ...
Page 422
... known of the pathologic activity of this virus in man . It has , how- ever , some relationship to the viruses producing en- cephalitides in man , since it is neutralized by immune sera to both the St. Louis and Japanese B viruses ...
... known of the pathologic activity of this virus in man . It has , how- ever , some relationship to the viruses producing en- cephalitides in man , since it is neutralized by immune sera to both the St. Louis and Japanese B viruses ...
Page
... known plant viruses . Such a species was not easy to find , but he located one finally , a garden flower known as the Mada- gascar periwinkle . This delicate - looking but really tough little plant can survive prolonged exposure to a ...
... known plant viruses . Such a species was not easy to find , but he located one finally , a garden flower known as the Mada- gascar periwinkle . This delicate - looking but really tough little plant can survive prolonged exposure to a ...
Contents
4 | 1 |
Timing Device for Speakers N A WEBER 116 | 14 |
GUNDERSON F L WaterSoluble Vitamins 277 | 19 |
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