SCIENCE.-ADVERTISEMENTS. 



V 



The Journal of 

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Published every Friday by 



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The 



American Historical 

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Vol. X, No. 3 APRIL, 190 5 



The Meeting of the American Historical Association at 

 Chicago. 



The Treatment of History. Goldwin Smith. 



Methods of Work in Historical Seminaries. George 



Burton Adams. 

 The Early Life of Oliver Ellsworth. William Garrot 



Brown. 



Origin of the Title Superintendent of Finance. Henkt 



Barrett Learned. 

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1795-1797. 

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The Physical Review. 



A JOURNAL OF EXPERIMENTAL AND 

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Edward L. Nichols, Ernest Merritt, and Frederick Bedell 



ex. May, 1905. 



TABLE OF CONTENTS. 



Infra-red Absorption Spectra. ?. Gases. 



W. W. Coblentz 

 The Elimination of Gas Action in Kxperiments on 

 Light Pressure. G. F. Hui.L 



Tlie Torque between (lie Two Coils of an Absolute 

 Electrodynamometer. GEORGE W. Patterson 



On tlie Theory of Hectrolytic Rectifier. S. R. Cook 



The Conduction Losses from Carbon Filaments when 

 heated to Incaudeecence in Various Gases. 



W. L. Hartman 

 An Optical Determination of the Zero Point in the 

 Telescope-Mirror-Scale Method. 



A. DE Forest Palmer, Jr 



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