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The purpose of "The Metallographist":
The results of the important researches regarding metallography are disseminated throughout the scientific papers and transactions of scientific societies chiefly of France, England, Germany and the United States, and even if the busy engineer or metallurgist, the metal producer or consumer in general, had the necessary knowledge of the three languages, and easy access to these publications, he could not possibly find time to go over such an amount of literature in order to extract from it what is of interest and importance to him. This is precisely the work which The Metallographist proposes to do for its readers by presenting to them every three months a clear, exhaustive and comprehensive review of what has been accomplished in metallography during the previous quarter.
The most important articles and memoirs will be reproduced in full, while those of minor importance will be condensed, accompanied in every case by such explanatory notes as will make them comprehensible and fruitful for others besides specialists. The Metallographist will publish moreover, besides the results of the investigations carried on in the Boston Testing Laboratories, original articles by eminent authorities and active workers who have kindly promised their collaboration. The editor will never lose sight of the fact that the importance of these investigations, to the world at large, lies chiefly in their ability to lead to deductions of industrial value, and his presentation of the subject will be conducted accordingly.
The purpose of "The Metallographist":
The results of the important researches regarding metallography are disseminated throughout the scientific papers and transactions of scientific societies chiefly of France, England, Germany and the United States, and even if the busy engineer or metallurgist, the metal producer or consumer in general, had the necessary knowledge of the three languages, and easy access to these publications, he could not possibly find time to go over such an amount of literature in order to extract from it what is of interest and importance to him. This is precisely the work which The Metallographist proposes to do for its readers by presenting to them every three months a clear, exhaustive and comprehensive review of what has been accomplished in metallography during the previous quarter.
The most important articles and memoirs will be reproduced in full, while those of minor importance will be condensed, accompanied in every case by such explanatory notes as will make them comprehensible and fruitful for others besides specialists. The Metallographist will publish moreover, besides the results of the investigations carried on in the Boston Testing Laboratories, original articles by eminent authorities and active workers who have kindly promised their collaboration. The editor will never lose sight of the fact that the importance of these investigations, to the world at large, lies chiefly in their ability to lead to deductions of industrial value, and his presentation of the subject will be conducted accordingly.
The purpose of "The Metallographist":
The results of the important researches regarding metallography are disseminated throughout the scientific papers and transactions of scientific societies chiefly of France, England, Germany and the United States, and even if the busy engineer or metallurgist, the metal producer or consumer in general, had the necessary knowledge of the three languages, and easy access to these publications, he could not possibly find time to go over such an amount of literature in order to extract from it what is of interest and importance to him. This is precisely the work which The Metallographist proposes to do for its readers by presenting to them every three months a clear, exhaustive and comprehensive review of what has been accomplished in metallography during the previous quarter.
The most important articles and memoirs will be reproduced in full, while those of minor importance will be condensed, accompanied in every case by such explanatory notes as will make them comprehensible and fruitful for others besides specialists. The Metallographist will publish moreover, besides the results of the investigations carried on in the Boston Testing Laboratories, original articles by eminent authorities and active workers who have kindly promised their collaboration. The editor will never lose sight of the fact that the importance of these investigations, to the world at large, lies chiefly in their ability to lead to deductions of industrial value, and his presentation of the subject will be conducted accordingly.
The purpose of "The Metallographist":
The results of the important researches regarding metallography are disseminated throughout the scientific papers and transactions of scientific societies chiefly of France, England, Germany and the United States, and even if the busy engineer or metallurgist, the metal producer or consumer in general, had the necessary knowledge of the three languages, and easy access to these publications, he could not possibly find time to go over such an amount of literature in order to extract from it what is of interest and importance to him. This is precisely the work which The Metallographist proposes to do for its readers by presenting to them every three months a clear, exhaustive and comprehensive review of what has been accomplished in metallography during the previous quarter.
The most important articles and memoirs will be reproduced in full, while those of minor importance will be condensed, accompanied in every case by such explanatory notes as will make them comprehensible and fruitful for others besides specialists. The Metallographist will publish moreover, besides the results of the investigations carried on in the Boston Testing Laboratories, original articles by eminent authorities and active workers who have kindly promised their collaboration. The editor will never lose sight of the fact that the importance of these investigations, to the world at large, lies chiefly in their ability to lead to deductions of industrial value, and his presentation of the subject will be conducted accordingly.
The purpose of "The Metallographist":
The results of the important researches regarding metallography are disseminated throughout the scientific papers and transactions of scientific societies chiefly of France, England, Germany and the United States, and even if the busy engineer or metallurgist, the metal producer or consumer in general, had the necessary knowledge of the three languages, and easy access to these publications, he could not possibly find time to go over such an amount of literature in order to extract from it what is of interest and importance to him. This is precisely the work which The Metallographist proposes to do for its readers by presenting to them every three months a clear, exhaustive and comprehensive review of what has been accomplished in metallography during the previous quarter.
The most important articles and memoirs will be reproduced in full, while those of minor importance will be condensed, accompanied in every case by such explanatory notes as will make them comprehensible and fruitful for others besides specialists. The Metallographist will publish moreover, besides the results of the investigations carried on in the Boston Testing Laboratories, original articles by eminent authorities and active workers who have kindly promised their collaboration. The editor will never lose sight of the fact that the importance of these investigations, to the world at large, lies chiefly in their ability to lead to deductions of industrial value, and his presentation of the subject will be conducted accordingly.
The purpose of "The Metallographist":
The results of the important researches regarding metallography are disseminated throughout the scientific papers and transactions of scientific societies chiefly of France, England, Germany and the United States, and even if the busy engineer or metallurgist, the metal producer or consumer in general, had the necessary knowledge of the three languages, and easy access to these publications, he could not possibly find time to go over such an amount of literature in order to extract from it what is of interest and importance to him. This is precisely the work which The Metallographist proposes to do for its readers by presenting to them every three months a clear, exhaustive and comprehensive review of what has been accomplished in metallography during the previous quarter.
The most important articles and memoirs will be reproduced in full, while those of minor importance will be condensed, accompanied in every case by such explanatory notes as will make them comprehensible and fruitful for others besides specialists. The Metallographist will publish moreover, besides the results of the investigations carried on in the Boston Testing Laboratories, original articles by eminent authorities and active workers who have kindly promised their collaboration. The editor will never lose sight of the fact that the importance of these investigations, to the world at large, lies chiefly in their ability to lead to deductions of industrial value, and his presentation of the subject will be conducted accordingly.
An electrochemical demonstration of the energy cycle and maximum quantum yield in photosynthesis
(1953)
1. The electrochemical method of Tödt for the determination of oxygen gas has been applied to the measurement of (1) the quantum requirement of photosynthesis and (2) the course of the light reaction and the dark back-oxidation over very short time periods (seconds).
2. With this new and independent, galvanometric method, the earlier results obtained by us with manometry have been confirmed, that is, attainment of a limiting quantum requirement of about 3 in the cycle of light and dark reactions. All significant objections raised regarding the time lag of manometry, as used by us, are thereby refuted.
3. Quantum requirements with single illumination periods as short as 5 seconds have been reported, and much shorter periods are shown possible.
4. The new electrochemical method opens up a field of investigation closed, on a time basis, to manometry. Nevertheless, manometry, with which the energetics of photosynthesis was discovered, can never be given up: for it alone of all methods gives information about both gases, oxygen and carbon dioxide.