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Editorial ...... 



The Great Activity of the United States Fish Commission. — 

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The Eruption of Krakatoa 



The United States Fish Comnriission's Work 



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 Mental Science. 



Notes on Hypnotism • . . . , 



Abnormal Sense-Perceptions . . . . 



Health Matters. 



Use of Tobacco ...... 



Electrical Science. 



Some New Tests of Secondary Batteries 

 New Method of producing Electric Currents 

 Some Curious Incandescent Lamp Phenomena 



217 



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223 

 224 

 224 



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Literature in School 



Children's Stories of the Great Scientists 



Our Celestial Home 



Soaps and Candles 



Examples in Physics 



Notes and News 

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On the Alleged Mongolian Affinities of the American Race : 



A Reply to Dr. Daniel G. Brinton . £>r. H. ten Kate 



Queries ...... 



224 

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225 

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227 

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