ScienceJohn Michels (Journalist) 1952 |
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Page 62
... plant remains , the criterion is mainly the relative abundance of dicotyledons and other plant types . In the Upper Cretaceous of the Yukon Valley and the Alaska Peninsula , for example , dicotyledons outnumber other plants by a propor ...
... plant remains , the criterion is mainly the relative abundance of dicotyledons and other plant types . In the Upper Cretaceous of the Yukon Valley and the Alaska Peninsula , for example , dicotyledons outnumber other plants by a propor ...
Page 502
... plants to bring about a variety of responses , such as improving the storage quality of vegetables , preventing fruit drop at har- vesttime , and killing undesirable plants . The com- pound must remain in contact with the plant and be ...
... plants to bring about a variety of responses , such as improving the storage quality of vegetables , preventing fruit drop at har- vesttime , and killing undesirable plants . The com- pound must remain in contact with the plant and be ...
Page 651
... Plant Taxono- mists , the Mycological Society of America , the Phyco- logical Society , and the Society of Protozoologists . Plant diseases and pathogenic organisms occupied the interest of the American Phytopathological Society and the ...
... Plant Taxono- mists , the Mycological Society of America , the Phyco- logical Society , and the Society of Protozoologists . Plant diseases and pathogenic organisms occupied the interest of the American Phytopathological Society and the ...
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AAAS acid activity American amino acid animals Annual appointed Association awarded Bentley Glass Biol biological blastocyst blood Cancer catalase cells chairman Chem Chemical Chemistry Chicago chlorophyll clinical colchicine College Committee compounds concentration Conference Congress cortisone Council culture cursor curve cytochrome Department director Division effect engineering enzyme experimental experiments Exptl field glucuronic acid glutathione growth helium hesperidin Hospital Ibid Illus indicated injection Institute insulin International investigation Laboratory Manuscript received measured Medical Medicine ment methanol method mice midden mo pregnant National normal observed obtained organic oxide paper Patient penicillin physical physiology pipettes plant polymyxin present president problems production professor protein reaction samples School Science scientific scientists Section Sept Society sodium solution specific spectra strain streptomycin Table temperature tion tissue tracking tube tuberculosis tumor tyrosinase University uraninite volume Washington York zinc