I9IS.] MINUTES. 



a;^^^ 



Thomas Hunt Morgan, Ph.D., New York. 

 Raymond Pearl, Ph.D., Orono, Me. 

 Theobald Smith, M.D., Boston, Mass. 

 An invitation was received from the Johns Hopkins University 

 to be represented at the Inauguration of Frank Johnson Goodnow, 

 as President, on May 20, 191 5. 



The following papers were read : 

 "Oil Concentration of Ores," by Howard W. DuBois, M.E. 

 (Introduced by Dr. Harry F. Keller.) Discussed by Mr. 

 Lehman. 

 " Concretions in Streams Formed by the Agency of the Blue- 

 Green Algse and Related Plants/' by H. Justin Roddy, M.S. 

 (Introduced by the Secertaries.) Discussed by Dr. Harsh- 

 berger, Mr. Sanders, and Prof. Keller. 

 " The Conditions of Black Shale Deposition as illustrated 

 by the Kupferschiefer and Lias of Germany," by Charles 

 Schuchert. 



Stated Meeting October i, 1915. 

 William W. Keen, M.D., LL.D., President, in the Chair. 



Professors Philip B. Hawk, Emory R. Johnson, and John 

 Anthony Miller, newly-elected members, subscribed the Laws and 

 were admitted into the Society. 



Letters accepting election to membership were received from 

 Prof. Walter S. Adams. 

 Prof. John F. Hayford. 

 Prof. WilHam F. Osgood. 

 Prof. John Zeleny. 

 Invitations were received : 

 From the Secretary of State to participate in the Second Pan- 

 American Scientific Congress to be held under the auspices 

 of the Government of the United States, at the city of Wash- 

 ington from December 27, 191 5, to January 8, 1916. 

 From the Trustees and Faculty of Vassar College, to be repre- 

 sented at the celebration of the Fiftieth Anniversary of the 

 opening of Vassar College during the week beginning Oc- 

 tober 10, 1915. 



