sciEir; 



A WEEKLY NEWSPAPER OF ALL THE ARTS AND SCIENCES. 



PUBLISHED BY N. D. C. HODGES, 874 BROADWAY, NEW YORE. 



Tenth Yeah. 

 Vol. XIX. No. 487 



JUNE 3, 1893. 



Single Copies, Ten Cents. 

 3.50 Per Year, in Advance. 



Contents. 



An Aechitectural Scholarship for 



Philadelphia. Barr Ferree 309 



Artesian Wells in Iowa. E. Ellsworth 



Call 310 



Eeview op the Origin op tece Basins 



OF the Great Lakes ... 313 



Notes and News 313 



August Wilhelm von Hofmann. Morris 



Loeb 314 



Cdkrent Notes on Anthropology. — VII. 



Edited by D. G. Brinton 316 



Astronomical Notes. Edited by George 



A. Hill 317 



Notes on Local BYTHOscopiD.a; and 



CERCOPID.S:. Edmund B. Southivick. 318 

 Letters to the Editor. 



Four-Fold Space and Two-Fold Time. 



George Bruce Halsted 319 



Family Traits. Enquirer 319 



The Systematic Position of the 



Diptera. C. H. Tyler Townsend. . 320 

 A Botanical Congress and Botanical 



Nomenclature. John M. Coulter.. 320 

 Among the Publishers 320 



Entered at the Post-OiHce of New York, N.Y., as 

 Second-Claas Mail Matter. 



INSECTS AND INSECTICIDES. 



A PRACTICAL MANUAL, 



Concerning Noxious Insects and the Methods 

 of Preventing their Injuries. 



By CLARENCE M. WEED, 



Professor of Entomology and Zoology, New 

 Hampshire State College. 



^VHAT IS SAII> ABOUT IT. 



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 State Entomologist of Illinois, Champaign, 111. 



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 Bailey, Cornell University. 



"It is one of the best books of the kind 1 have 

 ever seen."— J. Freemont Hickman, Agriculturist, 

 Ohio Experiment Station, Columbus, Ohio. 



"I shall gladly recommend it." — Prof. A. J. Cook, 

 Michigan Agricultural College. 



Price, $1.25. 



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The Dietetic Value of Bread. 



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