44 PROCEEDINGS OF THE CHICAGO MEETING 



TITLES AND ABSTRACTS OF PAPERS PRESENTED AT THE MORNING SESSION 

 AND DISCUSSIONS THEREON 



The Society then took up consideration of papers of general interest 

 with the presentation of 



GEOLOGY AND GEOGRAPHY JX THE UNITED STATES 

 BY EDWARD B. MATHEWS AND HOMER P. LITTLE 



(Abstract) 



An exhaustive report on the status of geology and geography, prepared for 

 the Division of Educational Relations of the National Research Council. The 

 report is based on an extensive study of the personal history and publications 

 of 2,500 men and women interested in the subjects named and a more intensive 

 study of over 1,200. The points considered are the present personnel and its 

 training, the opportunities offered for training in geology and geography, pub- 

 lications dealing with North American geology, organizations supporting re- 

 search, and the lines of investigation now in progress. 



In reply to a question by Prof. W. W. Atwood, Doctor Mathews said that 

 only one institution in the country was thoroughly equipped for training of 

 geographers. The demand for trained geographers far exceeds the supply, and 

 initial salaries are good. 



Eead from mannscript by the senior author. 



PRE-CAMBRIAN PROBLEMS 

 BY .J. J. SEDEBHOLM ^ 



(Alistract) 



Historical development of the study of the pre-Cambriau of northern Eu- 

 rope. Older ideas. Explanation by actual causes. 



Petrological problems : 



1. Primary constitution of the rocks of the pre-Cambrian. 



2. Their metamorphism. 



3. Their anatexis. 

 Stratigraphical problems : 



Present state of our knowledge of the stratigraphy of the pre-Cambrian 



of Fenno-Scandia. 

 Correlation with rocks in other countries. 

 Geotectonical problems : 



Do the great granitic masses possess any definite age? 

 Orogenetic zones in the pre-Cambrian of Fenno-Scandia. 



Presented by title in the absence of the author. 



By invitation of the Council. 



