Proceedings 20 1 



Professor Hall spoke of the death of V'erdine Truesdell, a 

 member of the Board of Trustees ; a committee was appointed 

 to draw up resolutions. 



Prof. Winchell brought up the matter of establishing a 

 state academy of natural sciences to receive some support 

 from the state, and suggested the advisability of making the 

 Minnesota x\cademy the state academy. 



Mr. H. C. Hanke suggested that action should be taken 

 by the Academy recommending to the Legislature some 

 change in the game laws in order more fully to protect the 

 game of the state. Mr. Hanke and the President were ap- 

 pointed a committee to investigate and report to the Academy. 



Program : 



Some Features in the Geology of Northeastern Minne- 

 sota, by Prof. N. H. Winchell. 



[abstract.] 



The features rioted in detail related to; (1) The nature of the 

 transition from the crystalline schists to the Laurentian. After the 

 description of the field facts to be observed on the dull point in Ver- 

 railion lake which embraces the corners of sections 13, 14, 21 and 32, 

 T 63-17, the author concluded that the transition from the crystalline 

 schists to the igneous and granite was of the nature of a gradual con- 

 formable change accompanied by siliciflcation, and by a change of the 

 schists themselves to gneisses, in the first place, and finally to granite 

 by hydro-thermal fusion, and that the granitic rock penetrated the 

 schists by generation in them of granitic minerals, in the first place, 

 and later, or nearer the seat of greater heat, by actual intrusion in a 

 molten form. (2) The nature of the relations of the Stuntz conglom- 

 erate of Vermilion lake. The author stated that evidence was discov- 

 ered in a late excursion to Vermilion lake to demonstrate that this 

 rock is a true conglomerate and not a breccia. It graduates into a 

 quartzite and into a graywacke and the graywacke into argilliceous 

 slate, these latter, constituting with the conglomerate, an upper for- 

 mation non-conformable on the Vermilion iron-bearing formation. 

 (3) The nature and the position of the conglomerate in the Puck- 

 ivunge valley. This is composed of quartz pebbles, essentially, which 

 are referable to the Animikie, some of them being composed of crypto- 

 crystalline silica like that in the rock taconyte, and as a formation it 

 lies above a peculiar greenish graywacke (named the Puckwunge 

 slate) and is overlain by trap and amygdaloidal rock resembling the 

 Keweenawan traps. It wah found that this conglomerate constitutes 

 the base of an important part of the Keweenawan, or separates the 

 Keweenawan into two great members. 



