S CIENTIFl C LITER A T URE. 



425 



gineers and students. The author gives sim- 

 ple descriptions of the very latest Brush 

 dynamos and a list of instructions for use in 

 emergencies. A novel feature is a revolva- 

 I)le celluloid chart. This chart represents a 

 Brush dynamo with a revolvable armature. 

 It shows the manner of cutting the lines of 



force, the directions of the flow of current 

 induced in the armature coils, the method 

 of commuting the current, and the flow of 

 current to the external circuit and return to 

 the negative brush. The book has been ap- 

 proved by the Brush company. (N. W. Hen- 

 ley & Co., N. Y.) 



PUBLICATIONS EECEIVED. 



Adicbee, Dr. Erich. Kant Studien. Kiel imd 

 Leipzig : Lipsius & Tisclier. Pp. 185. 



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Ashhurst, John, Jr. The International Ency- 

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Ben.iamin, Park. The Intellectual Rise in 

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Bonner, T. G. Charles Lyell and Modern 

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Bulletins, Catalogues, Reports, Reprints, etc. 

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 Annual Report and Some Infonnation regarding 

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by Attention. By J. G. Hibben. Reaction Time 

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 Tennessee State Board of Health Bulletins. Octo- 

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Campbell, Douglas Houghton, Ph. D. The 

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Crawford, P. Marion. Constantinople. Illus- 

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Grinnell, G. B. The Story of the In ian. 

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Griswold, W. M. A Descriptive List of Books 

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Hering, Prof. Ewald. On Memory and the 

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Kerner von Marilaun, Anton. Translated by 

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Maryland, Climatology and Physical Features 

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Mills, Wesley. The Psychic Development of 

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New Jersey Geological Survey. Annual Re- 

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Remsen, Ira, and Randall, Wyatt. Chemical 

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Sedgwick, William T., and Wilson, Edmund 

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