%^-i) 



SCIENCE 



SixiH Year. 

 Vol. XI. No. 277. 



NEW YORK, MAY 25, 1888. 



Single Copies, Ten Cents. 

 ^3.50 Per Year, in Advance. 



Entered at New York Post-Office as Second-OIass Mail-Matter. 



Editorial ...... 



Who shall succeed Superintendent of Schools Jasper in New 

 York? — News from Central Africa. — The Retirement of 

 Commander Baitlett. 



Mythology and American Myths 

 Scientific News in Washington. 



Insirumenls fot Kecoiding and Reproducing Speech . 



Shad- Hatching ...... 



The Water-Spimis of April . . . . 



United States Fish Commission Work on the Pacific Coast 



Electrical Science. 



Edison's Improved Phonogiaph 



Dynamo and .steam Turbme 



Priestman's Priioleum-Engine 



Accumulator Tests ..... 



The Bently-Knighl Electric Tramway in Allegheny Ciiy 



Health Matters. 



Slate Medicine ..... 

 Too Many Medical Students 



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24S 

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Oleomargarine in Massachusetts .... 

 The Typhoid Bacillus . . . . ■ 



The Number of Medical Students .... 



Mental Science. 



Reflex Speech ...... 



Re-action Time for Temperature and Tactile Sensations 



An Instructive Case of Word-Deafness 



The 'Visual Area' ...... 



Book-Reviews. 



An Elementary Geography of the British Isles 

 Society in Rome under the Ccesars . . . ■ 



■ .Stieler's Hand-Atlas . . . . ■ 



A Synopsis of Elementary Results in Pure Mathematics 



Notes and News ..... 

 Letters to the Editor. 



Experiments in Vision again . . Jos-ph LtConte 



Composite Portraiture of the Insane . WilUaiii Noyes. M.D. 

 The significance of ' Variety' and ' Species ' . H. IV. Conn 



The Ohio Mounds .... Cyrus Thomas 



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The Science Company, Publishers, /j.'/ Lafayette Place, New Yoi^k. 



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