Volume VII, No. 172 



May 21, 1886 



SCIENCE 



Comment and Criticism. — Primary education and the happiness of children. — The Illinois state board 



of health and the improvement of medical schools. — Industrial education in Texas .... 449 



The intellectual movement in Japan ....... K. Mitsukari 450 



The American climatological association . . . . . . . . - 453 



Programme of the International philomathic congress ....... 455 



Notes and News. — Pennsylvania boroughs. — Female medical students in Boston. — The Chesapeake 

 zoological laboratory. — A bureau of animal industry. — Shad for the Pacific coast. — The summer 

 work of the coast survey. — Primary education in Holland. — The medical school at Tokio. — Chem- 

 icals and fish. — Railway coal-consumption as affected by temperature and length of trains. — An 

 optical illusion . . . . . . . . . . . . . . . .455 



Letters to the Editor. 



On a geodetic survey of the United States. — Pharyngeal respiratory movements of adult am- 



C. O. Boutelle ...... 460 phibia under water. — Joseph LeConte . . 462 



Double vision. — W. LeConte Stevens . . 461 Absorption of mercurial vapor by soils. — E. W . 

 Diathermancy of ebonite. — Alfred M. Mayer . 462 Hilgard ....... 462 



SCIENCE SUPPLEMENT. 



The agricultural industries of Japan . . . . . . • • • 463 



A book-manufactory in ancient Rome ......... 467 



The heating-power of gas . . . . . . . . • • • -4^7 



Remsen's Introduction to the study of chemistry . 468 



Compayre's History of pedagogy 469 



The star-guide 47° 



The Science Company, Publishers, New York, 



743 Broadway Price 15 cents. 



