Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 91American Philosophical Society, 1947 |
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Сторінка 88
... DISEASES INTERNATIONAL PROBLEMS IN PLANT DISEASE CONTROL ELVIN CHARLES. PUBLIC health is a matter of international interest and , according to the late Hermann Biggs , is purchasable . Health means more than the absence of disease ...
... DISEASES INTERNATIONAL PROBLEMS IN PLANT DISEASE CONTROL ELVIN CHARLES. PUBLIC health is a matter of international interest and , according to the late Hermann Biggs , is purchasable . Health means more than the absence of disease ...
Сторінка 90
... diseases , more drastic measures have been employed at times , for example , the ruthless destruction of all susceptible hosts within a proscribed area . As far as many diseases are concerned , the world has just passed through a very ...
... diseases , more drastic measures have been employed at times , for example , the ruthless destruction of all susceptible hosts within a proscribed area . As far as many diseases are concerned , the world has just passed through a very ...
Сторінка 95
... diseases , insect pests , and unfavorable weather are among man's worst enemies in his attempts to feed and clothe himself , because man is basically dependent for his subsistence on plants and plant products . After all , plants are ...
... diseases , insect pests , and unfavorable weather are among man's worst enemies in his attempts to feed and clothe himself , because man is basically dependent for his subsistence on plants and plant products . After all , plants are ...
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Atomic Physics and International Cooperation NIELS H D BOHR | 137 |
An Electronic Reading Aid for the Blind V K ZWORYKIN and L E FLORY | 139 |
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Academy Alexandre Hardy American Philosophical Society Arch auteurs autres avait avant avoir Bellerose bien C'est century comédiens du roi comédies Congress d'une deux diseases dramatique East Melchior Island été evidence faict fait Fonds XV Franklin Geminid Hindu human Hume Ibid India interracial Island Jews jouer jour l'Hôtel de Bourgogne labor Langley laws of nature League lesd letter Lincolnshire livres livres tournois Maclure Maclure's ment meteor miracles Montdory Muslim Negro observations œuvres organization Pakistan Paris party pastorales peace Peirce Peirce's Perseid petroglyphs pièces Pierre le Messier poèmes poète à gages political porphyries premier present problems Proceedings promect province qu'il race racial radiant représentations Robert Guérin rust scientific scientists sera somme temps théâtre tion tonalite tout tragédie tragi-comédies trails troupe United Valleran le Conte Voir Appendice William Maclure Yorkshire