Eleventh Yeak. 

 Vol. XXI. No. 533. 



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APRIL 14, 1893. 



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Physical Science in the Secondary Schools. 



Charles F. Mabery : 



Our Vacant Public Lands. F. H, Newell . . 1 



Contributions from the Laboratory of the 

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 feld : 



The Hieroglyphics and Symbols of Ancient 

 Mexico. Francis Parry S 



Current Notes on Anthropology.— SXVI. D. 

 G. Brinton, Editor i 



Glaciation in Australia, T. S. Hall i 



Secrets of the Atmosphere. H. A. Hazen ' 



Loss of Dry Matter by the Sprouting of 



Corn-Seeds. E. H. Farrington. S 



Electrical Notes. B. A. F. S 



Letters to the Editor. 



Early Attempts at Storm -Warning. Frank 



Waldo S 



Pre-Historic Remains in America. D. G. 



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Auroras. M. A. Veeder '. i 



The Palfeolithic Man Once More. Henry W. 



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The History and Theory of Money i 



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