Volume VII. No. 164^ ^central park, * 



, NEW YORK. ' Av 



March 26, 1886 



SCIENCE 



Comment and Criticism. — The lakes of western New York. — A patchwork report from the U. S. naval 

 observatory. — The Warner prizes for essays on the brilliant sunsets of 1SS3-S4. — New microscopic 

 objectives .................. 273 



Map of Central America, showing inter oceanic routes pi'oposcd by the 

 French commission under Commander L. N. B. JVyse. 



The European colonies and their trade .... Gar dine?- G. Hubbard 275 



The U. S. geological survey ........... 276 



The railway to central Asia . . . . . . . . . . . • 277 



Photographic study of stellar spectra ..... Edward C. Pickering 278 



The Hudson Bay route to Europe .......... 278 



The Panama canal ............. 279 



London Letter. — The water-supply of London. — Unusually low temperatures in England. — Recent 

 deaths of English scientific men. — The engineering tripos at Cambridge. — The French Phylloxera 

 commission. — English interest in Pasteur's hydrophobia experiments ...... 2S1 



Vienna Letter. — A new gas-lamp. — Mr. Ernst Freund's experiments on means for preventing the coagula- 

 tion of blood ................. 282 



Notes and News. — The summer course in chemistry at Harvard. — A memorial to Friedrich Wohler. — 

 The topographical map of New Jersey. — The fifth annual report of the U. S. geological survey. — The 

 publications of Professor Koch. — The annual report of the Connecticut agricultural experiment-station. 

 — A geological map of Russian Turkestan ............ 2S3 



Letters to the Editor. 



Certain questions relating to national endowment I A swindler abroad again. — H. D. Craivford . 286 



of research in this country. — R.W. Shufeldt 284 i Reports of the National academy of sciences. — 

 The silver problem. — Chas. Field . . . 2S6 Asaph Hall 2S6 



SCIENCE SUPPLEMENT. 



Educational tendencies in Japan and in America . . Nicholas Murray Butler 287 

 The characters of children as evidenced by their powers of observation . . . 288 

 Observations upon digestion in the humac stomach . . . . . .290 



Blindness in Russia .............. 291 



Bancroft's History of Alaska ........... 292 



Oceana . . . . . . . . . . . . . 292 



Minor book notices ............. 294 



The Science Co?npany t Publishers, New York, 

 743 Broadway. Price 15 cents. 



