94 PEOCEEDIXGS OF THE BALTIMORE MEETING 



bodies, their excellence for the production of high-grade Bessemer iron, and 

 their accessibility. 



Second, the mode of occurrence and origin of the ores will be discussed. In 

 all of the fifteen or twenty mining localities studied by the writer, the ores, in 

 the form of irregular masses, lenses, or bands, usually with indefinite bound- 

 aries, were observed to be in close association with a fine to medium grained 

 granite, older hornblende gneiss or gabbro, and pegmatite. Evidence will be 

 presented to support the view that the ores are not straight magmatic segre- 

 gation deposits, but that they are direct results of the process of pegmatiza- 

 tion, the ores probably having been largely or wholly derived from the old 

 iron-rich hornblende gneiss or gabbro. 



Presented in abstract by the author from notes. 

 Discussed bv Dr. Whitman Cross. 



Adjournment for the day was taken about 4.^1:5 p. m. 



Sessiox of Friday Evexixg, December 27 



The evening session consisted of a round-table discussion, held in con 

 nection with the annual subscription smoker, at the Southern Hotel. 

 About one hundred and twenty-five members of the Geological Society 

 of America, Paleontological Society, and Association of American Geog- 

 raphers met, under the chairmanship of Prof. Bailey Willis, and listened 

 to the following paper : 



COOPERATIOX IX ADTAXCED GEOLOGIC IXSTRUCTIOX 

 BY HERBERT E. GREGORY 



(Ahstract) 



This paper suggests three ways in which advanced instruction and facilities 

 for research in geology might be improved : 1. Organize at a few institutions 

 stronger departments of geology than now exist at any institution. 2. Arrange 

 courses and select faculties in a group of neighboring institutions having 

 strong departments of geology, to the end that, for example, one university 

 should develop stratigraphy, another economic geology, and arrange for free 

 interchange of students. 3. Encourage the departments of geology in educa- 

 tional institutions, the United States Geological Survey and State surveys to 

 combine in financing and managing one or more efficiently organized field 

 schools, attendance at which should be required of all students who plan to 

 become professional geologists. It is recommended that such a cooperative 

 field school be organized as soon as practicable in order to overcome a recog- 

 nized weakness in present geologic training. 



Professor Gregory's paper was followed, on call of the chairman, by 

 remarks by Professors Charles P. Berkey, George F. Kay, J. C. Merriam, 

 and William M. Davis. 



