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Page 942
The topics chosen are treated in considerable depth , and tracings of successive trends in the history of a few ideas or concepts concerning a basic biological problem are presented . The emphasis throughout is on experiments ...
The topics chosen are treated in considerable depth , and tracings of successive trends in the history of a few ideas or concepts concerning a basic biological problem are presented . The emphasis throughout is on experiments ...
Page 1431
The problem is essentially one of fluid movement over or within porous media , and the Volcanology and Miscellaneous ... Central problems canology than that it has outgrown include residence time and diffusion in its once largely ...
The problem is essentially one of fluid movement over or within porous media , and the Volcanology and Miscellaneous ... Central problems canology than that it has outgrown include residence time and diffusion in its once largely ...
Page 1439
a problems and responsibilities encoun- eign Policy and Politics , ” Warner R. fairs , ” Wright adds his emphasis to ... it is urgent that they ministration , coordination , and program this will not solve the problem of the find a ...
a problems and responsibilities encoun- eign Policy and Politics , ” Warner R. fairs , ” Wright adds his emphasis to ... it is urgent that they ministration , coordination , and program this will not solve the problem of the find a ...
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Contents
LETTERS | 951 |
NEWS AND COMMENT | 979 |
Persistence in Bean Plants Grown in Continuous | 1240 |
4 other sections not shown
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acid activity addition American amount analysis animals appears applied Association cells Center changes chemical complete concentration containing continuous Department designed determined direct effect electron engineering experiments factor field fraction given human Illus important increase indicated Institute interest intern laboratory less light London material means measured meeting ment method minutes Model nature normal Notes observed obtained occur operation organic percent period Physics position possible preparation present Press pressure problems produced range reaction recent recorded References relative reported response samples Science scientific scientists separate shown similar solution specific structure studies suggested Table temperature tion United Univ University virus Washington weight York