26o The American Geologist. ^p'*'- i^^i 
Prof. Woodworth of Harvard ; a visit to Iceland, by Prof. 
Jaggar of Harvard; two courses at the Minnesota Seaside 
Station on the Pacific Coast, by Prof. C. W. Hall of Min- 
nesota. 
The Intercollegiate .\ppalachian Course of five weeks' 
duration, for men only, will be given under the direction 
of several instructors, as follows : 
July 3-S. — Professor W. B. Clark, of the Johns Hopkins Uni- 
versity, Baltimore, Md., on the Tertiary and Cretaceous Strata of 
the Coastal Plain of Maryland; July 10-15, Professor W. M. Davis, 
of Harvard University, Cambridge, Mass., on the folded Palaeozoic 
Strata of the Susquehanna-Juniata district of Pennsylvania; July 
17-22, Professor T. C. Hopkins, of Syracuse University, Syracuse, 
N. Y., on the horizontal Palaeozoic Strata and Glacial Features of 
Central New York: July 24-29, Professor H. P. Cushing, of West- 
ern Reserve University, Cleveland, Ohio, on the faulted Crystalline 
and Palaeozoic Rocks of the Little Falls district, N Y.; July 31- 
August 5, Professor J. Barrell, of Yale University, New Haven, 
Conn., on the Metamorphic and Triassic Rocks of Western Con- 
necticut. 
A circular giving fuller details of the course can be had of 
professor Clark. The work of each week may be taken separately 
if desired. 
Geological Society OF Washington. At the meeting 
of February 22d the following was the program :^ "The 
time element in stratigraphy and correlation," T. ^V. Stan- 
ton, with discussion by W. H. Dall, E. O. Ulrich. David 
White. At the meeting of March 8th the following pro- 
gram was presented : "Subterranean gases at Cripple 
Creek," Waldemar Lindgren ; "Ore deposits of Bingham, 
Utah," T- W. Boutwell ; "An asphalt lake near Tampico, 
Mexico," W. H. Weed. 
At the meeting of March 22d the following papers were 
presented: "The coal measures of Southern Brazil." I. C. 
White; "Flora of the Brazilian coal measures." David 
A^^hite ; "Tourmaline mines of California," ^V. T. Schaller. 
Umted" States GEOLOGirAi, Survey. 
Among the recent publications are : 
"Kittanning (Pa.) folio, No. 115," by Charles Butts. 
"Geology and water resources of Central Oregon." by 
I. C. Russell ; Bulletin No. 252. 
"Report of coal tests made at Louisiana Purchase Ex- 
position." by E. \\\ Parker. J. A. Holmes, and M. R. 
Campbell. Bulletin No. 261. 
"Lignite of North Dakota as applied to irrigation." by 
F. A. Wilder. Water Supply and Irrigation Paper No. 117. 
"Water powers of Alabama." by B. W. Hall. Water 
Supply and Irrigation Paper No. 107. 
Among the topographic maps recently issued are the 
following: Ouray. Colo.; Needles Mountains. Colo. 
