SCIENC 



SixiH Year. 

 Vol. XII. No. 300. 



NEW YORK, November 2, li 



Single Copies, Ten Cents. 

 I3.50 Per Year, in Advance. 



Kntered nt New Tork Poat-Offion as Seoond-OlasB Mail-Matter. 



Editorial ...... 



The Future of Johns Hopkins University. — Stalisiics of Mar- 

 riage and Divdrce in the United States. — The ConLjres- 

 sional I .iliraiy Buildinp;. 



Centenarians in France .... 

 The Topographic Map of New Jersey 



ii-.A/.n. 



Tissot's Theory of the Projection of Maps 

 School- Work and Eyesight 

 Commercial Geography. 



Tlie Neglect of Native Fruit-Plants in California 



Electrical Science. 



Improvements in Methods of Manufacturing Storage- Batteries 

 New Street Car Motor of the Sprague Company 

 Electricity for Tempering Steel .... 

 Standards of Light ..... 



Effect of Electric Currents on Plants 



Health Matters. 



Depressed Aieas as Health-Resoris 



Garbage-Cremation ..... 



Healing of Wounds ..... 



205 



205 



206 



207 

 207 



2og 



20g 

 210 

 210 

 210 

 210 



210 

 211 

 2ir 



I.ead-I'oisoning ...... 



Poiato-Poi-oning ..... 



Ethnology. 



The Laws of Marriage and Descent 



Discovery of Flint Implements at Southall, England 



Book-Reviews. 



A Handbook to the Land Charters, and other Saxonic Docu- 

 ments ...... 



Tenure and Toil ..... 



Inebriety : its Causes, its Results, its Remedy 



Hand-Book of Moral Philosophy . 



Western China . 



Elementary Classics 



Talks on [Psychology applied to Teaching 



A First Book in German , 



Macmillan's Greek Course 



Notes and News 

 Letters to the Editor. 



Dream Excitation . . . Mark Baldwin 



Chemical Action between Solids . . Henry M. Howe 



212 

 212 



213 

 213 

 214 

 214 

 214 

 214 

 214 



216 

 2X6 



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The subseripHon price of THE CESTVRX 

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Animal Memoirs 



Parts land II. By Prof. Samuel Lock- 

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Part II. — BIRDS. Just Ready. Cloth, 

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From The Nation, September 6, 1888. 



Dr. Samuel Lockwood is well known as an 

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Though primarily intended for supplementary 

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