July 13, 1917] 



SCIENCE 



45 



as he was unable to leave his work on the Council 

 for National Defense, at Washington, Professor S. 

 M. Woodward, of the University of Iowa, gave the 

 address on the "Application of science to flood 

 prevention," an outline of his work on the Dayton, 

 Ohio, flood-prevention project. 



Following the meetings of the sections on Sat- 

 urday morning the business meeting was held, at 

 which the following ofiicers were elected for the 

 coming year. 



President — L. S. Boss, Drake University, Des 

 Moines. 



First Vice-president — S. W. Beyer, State College, 

 Ames. 



Secon-d Vice-president — C. E. Seashore, State 

 University, Iowa City. 



Secretary — James H. Lees, Iowa Geological Sur- 

 vey, Des Moines. 



Treasurer — A. O. Thomas, State University, 

 Iowa City. 



Eesolutions were adopted pledging the support 

 of the academy to the President of the United 

 States, also commending the action of the Iowa 

 legislature in passing laws to give quail and 

 prairie chicken a closed season of five years and 

 providing for a board of conservation to investi- 

 gate localities in Iowa which are of scenic, scientific 

 and historic interest. 



PROGEAM 



Geology and, Allied Subjects 

 A notabl-e mound group near the proposed govern- 

 ment parJc at McGregor: Ellison Okr. 

 (o) Wave action and results of ice action as seen 

 near the Macbride Lakeside laboratory, summer 

 of 1916. (6) Second record of oscillations in 

 laJce level, and records of lake temperatures and 

 meteorology, at tlie Macbride Lakeside labora- 

 tory, July, 1916: John L. Tilton. 

 Possible fan structure in Canadian Bockies: 

 Charles Kjeyes. 



The Cordillera in Jasper Park, in northwest Al- 

 berta, as in other parts of the great mountain 

 chain, is characterized by tremendous thrust 

 planes; but uiiUke most other portions there is on 

 the east flank a sharp flexing on a large scale. 

 The especially notable feature is the Appalachian 

 or Alpine type of structure. The relationships of 

 the various members are presented with greater 

 perspicuity than anywhere else throughout the en- 

 tire extent of the Eocky Mountain region, per- 

 haps with greater graphic distinctness than Appa- 

 lachian structure is exhibited in the whole world. 

 A hundred miles farther south, on the west side of 



the chain, the pre-Cambrian elastics with steep but 

 variable slants indicate the presence of the other 

 half of the orographic fan. 



Glacier dams of central Washington: Charles 

 Keyes. 



Extent and age of Cap-au-Gris fault: Charles 

 Keyes. 



A bibliography of tlie driftless area: W. D. Ship- 

 ton. 



(o) Tfie lowan glaciation and tlie so-called lowan 



loess deposits. (6) Post-Kansan erosion, (c) 



The Buchanan gravels of Calvin and the lowan 



out wash: M. M. Leighton. 

 The loess and the antiquity of man: B. Shimek. 

 History of tlie Pleistocene in Iowa: Emmet J. 



Cable. 

 Pleistocene deposits between Manilla in Crawford 



county and Coon Bapids in Carroll county, Iowa: 



George F. Kay. 



The most significant features that have been re- 

 vealed by a study of the Pleistocene deposits in 

 many deep cuts made recently between Manilla in 

 Crawford county and Coon Eapids in Carroll 

 county, by the Chicago, Milwaukee and St. Paul 

 EaOway Company, were described. 



Ocheyedan mound, Osceola county, Iowa: George 



F. K-ay. 



This brief paper describes the chief characters 

 of the long time famous Ocheyedan mound, which 

 is thought by many persons to be the most pic- 

 turesque topographic feature in northwestern Iowa. 



The mound is a kame which was formed during 

 the recession of the Wisconsin ice sheet. 



The esthetic value of such beautiful and inter- 

 esting geological phenomena as Ocheyedan mound 

 should be fully appreciated by the citizens of the 

 state, and every effort should be made to prevent 

 their destruction. Already Ocheyedan mound has 

 been somewhat marred by the removal at its sum- 

 mit of sand and gravel which was used for com- 

 mercial purposes. To be sure, the mound is valu- 

 able for the many thousands of tons of material 

 that might be taken from it to be used for road- 

 making or other purposes, but of far greater value 

 is it to the state as a beauty spot, a landmark, 

 which should be conserved for future generations 

 just as zealously as we are wont to conserve our 

 material resources. 



A note regarding a slight earthquake at Iowa City, 



on April 9, 1917 : George F. Kay. 

 A supposed fruit or nut from the Tertiary of 



Alaska: A. O. Thomas. 



