Mat 7, 1909] 



SCIENCE 



757 



Some Undescribed Features of the Yellowstone 



'National Park: Whjuam Libbet. 

 Accumulation of Inherited Features in Shorelines 



of Elevation: J. W. Goldthwait. 

 The Origin of Loess Topography: G. E. Condba. 

 The Stream Robbery on which the Belle Fourche 



Reclamation Project is Based: N. H. Daeton. 

 Delta Form and Structure of the Thames River 



Terraces, Connecticut : F. V. Guixiveb. 

 On the Elements of the Surface Sculptured by 



Valley Glaciers: WiiiUAM Heebebt Hobbs. 

 Existing Glaciers of the Western Hemisphere: 



O. D. VON Engeln. 

 Map Criticism: Cyeus C. Adams. 

 The Topographer's A B G of Land Forms: Fban- 



gois E. Matthes. 

 The Principles of Topographic Delineation: Fean- 



501S E. Matthes. 

 The Topographic Base Map of Alaska: Alfeed 



H. Beooks. 

 The Requisites of a School Wall Map: J. Paul 



GOODE. 



How mMj the Teaching of Geography in Elemen- 

 tary Schools be Improved? C. T. McFablane. 



On Apparatus for Instruction in the Interpretor 

 tion of Maps: Wiixiam Hebbeet Hobbs. 



Three Gatherings of Geographic Interest: Aibeet 

 Peeet Bbigham. 



Status of the Magnetic Survey of the Earth: 

 L. A. Bauee. 



A Reconnaissance in the Arctic Slope of Alaska: 

 Eenest de Koven Leffingweix. 



The Climate ef Cuba: Henet Gannett. 



The Temperature at Great Heights above the 

 American Continent: A. Lawbence Rotch. 



The Cyclonic Unit in CUmatological Investiga- 

 tions: R. DeC. Waed. 



The Climate of the Historic Past: Ellswoeth 

 Huntington. 



Origin of Civilization Through Intermittency of 

 Climatic Factors: J. RussEii Smith. 



The National Forest Policy: Heebebt A. Smith. 



A Proposed Ecological Survey in Illinois: Henet 

 C. CowMis. 



Decrease in Population in the Plateau Region of 

 Central New York: Rau>h S. Taee. 



Locations of Towns and Cities in Central New 

 York: Rauph S. Taee. 



Some Anthropogeographic Effects of Glacial 

 Erosion in the Alps: N. M. Fenneman. 



Results of Recent Census of Cuba: Henet Gan- 

 nett. 



The Anthropography of Some Great Cities: Mask 

 Jefpeeson. 



The Capacity of the United States for Population : 



At.beet Peeet Beigham. 

 The Reservoir Systems of Flood Protection in the 



Light of the Recent Floods of the Mississippi 



River: Robeet M. Beown. 

 Geographical and Other Influences Affecting the 



Pottery Industry of Trenton, N. J.: Rat 



Hughes Whitbeck. 

 Geographical Influences in the Development of 



Ohio: Feank Caenet. 

 Trade Routes in the Economic Geography of 



Bolivia: Isaiah Bowman. 

 The Geography of Wisconsin: Laweence Martin. 

 The Geographic Distribution of Culture: Make 



Jeffeeson. 

 The Influence of the Precious Metals on American 



Exploration, Discovery, Conquest and Posses- 

 sion: Geoege David Hubbaed. 

 Some Practical Results of the Ninth International 



Geographical Congress: H. G. Betant. 

 A Remarkable Glacial River and Its Modem Rep- 

 resentative: F. B. Tatloe. 



The Baltimore meeting was one of great in- 

 terest to geologists and geographers, not only on 

 account of the large number of papers presented, 

 many of which had to be read by title, but also 

 because there were so many opportunities to meet 

 men from different sections of the country and to 

 discuss and compare individual fields of work, 

 without which great advance in science can not 

 be made. Great credit should be given to the 

 members of the Geological Department of Johns 

 Hopkins University for the arrangements of the 

 details of the meeting. 



F. P. GUIXJVEB, 



Secretary Section E 



SOCIETIES AND ACADEMIES 



TWENTT-FIFTH meeting of the CHICAGO SECTION 

 OF THE AMEBICAN MATHEMATICAL SOCIETY 



The twenty-fifth meeting of the Chicago Section 

 of the American Mathematical Society was held 

 at the University of Chicago on Friday and Sat- 

 urday, April 9 and 10, 1909. The attendance 

 upon the various sessions numbered over sixty, 

 including forty-six members of the society. On 

 Friday evening forty members dined together in 

 the caf4 of the university commons, and discussed 

 informally various topics of interest, including 

 the plans for the meeting of the British Associa- 

 tion for the Advancement of Science to be held 

 in Winnipeg this summer, and the next Interna- 

 tional Congress of Mathematicians to be held in 

 Jingland in 1912. 



