ABSTRACTS AND DISCUSSIONS OF PAPERS (j ( .> 



The same sort of westward growth of the ice-sheet may have taken place 

 in the Illinoian stage of glaciation, for it now appears probable that the Illi- 

 noian drift from the Labrador center is somewhat older than drift which was 

 carried southward from the region south of Hudson Bay through the Lake 

 Michigan basin into Illinois, and also older than the Iowan drift brought in 

 from districts still farther west. 



This interpretation, if correct, may do away with some of the difficulty 

 hitherto found in explaining the development of an ice-sheet in the low area 

 west of Hudson Bay. 



Presented in abstract extemporaneously. 

 Soeietv adjourned at 12.45 o'clock p. m. 



AFTERNOON SESSION 



The Society met at 2.10 o'clock p. m., with Mr. F. B. Taylor in the 

 chair. 



RESOLUTION REGARDING THE TAKING OF EXPERT TESTIMONY 



The Secretary pro tern, read a resolution adopted by the Council at its 

 noon meeting as follows : 



"In view of the fact that there is almost a universal desire among scientific 

 men for some sort of reform in the manner of presenting expert opinion in 

 legal procedure, and in view of the fact that the geologists of the country are 

 certainly as deeply interested in this matter as any other scientific body, the 

 following resolutions are presented for consideration : 



"Resolved, That the Geological Society of America recognizes the urgent 

 need of reform in the methods of securing evidence or expert opinion in 

 judicial procedure ; 



"That the Geological Society of America approve the efforts of the Ameri- 

 can Association for the Advancement of Science in this behalf, and 



"That the Council of the Society is hereby authorized and directed to co- 

 operate with the Committee of the American Association for the Advancement 

 of Science in an endeavor to bring about such a reform." 



On motion, the resolution was adopted by the Society. 



From 2.10 to 2. -'10 o'clock p. m. the Society met in joint session with 

 the Paleontological Society and listened to the address of Dr. E. 0. Ul- 

 rich, President of that Society, on "The use of fossils in correlation." 



The Society then proceeded to the consideration of scientific papers. 



Many of the attending geologists took advantage of the invitation of 

 the Geophysical Laboratory to visit that institution during the afternoon. 

 Arrangements were made by the staff of the laboratory to exhibit the 

 work of the different departments, and a most instructive afternoon was 

 spent by those interested in the geophysical and petrographic lines. 

 VI — Bull. Geol. Soc. Am., Vol. 27, 1915 



