Editorials. 



The Summer meeting of the Geological Society of America 

 will be held at Madison, Wis., on August 15 and 16. The ses- 

 sion of the American Association for the Advancement of Science 

 will begin at the same place on the 1 7th of August and extend 

 to the 23d. The Congress of Geologists, under the auspices of 

 the Columbian Exposition, will begin at Chicago, on August 24, 

 and continue its sessions so long as its work may require. Pre- 

 liminary to this series of meetings. Professors M. E. Wadsworth 

 and C. R. Van Hise will meet such geologists as care to visit the 

 Lake Superior region at the Commercial Hotel, Iron Mountain, 

 Mich., on the forenoon of August 7, and will act as guides dur- 

 ing the week following. A carefully prepared scheme for the 

 trip is announced, embracing visits to the leading points of inter- 

 est in the Menominee, Marquette and Gogebic iron districts, and 

 in the copper -bearing region of Keweenaw Point. Those who 

 desire to participate in the excursion, or who wish information 

 regarding it, should address Professor Van Hise, at Madison. 



In connection with the meetings of the Geological Society and 

 the American Association at Madison, there will be excursions 

 to the Devil's Lake region, to the Dells of the Wisconsin, and 

 to the driftless area, under the guidance of geologists personally 

 familiar with the features of most special interest. The article 

 of Professor Van Hise in this number is a timely presentation 

 of some points of peculiar significance in the first named region, 

 and will prove very serviceable to those who choose the excur- 

 sion to that region. 



It is proposed to hold the sessions of the Congress at Chi- 

 cago at the Art Institute during the forenoons, leaving the after- 

 noons free for visiting the Exposition. Experience has shown 

 that a half day devoted to looking at exhibits, where there is 



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