viii MINUTES. 



Agriculture, Washington, D. C, which was discussed by Pro- 

 fessors Harshberger, Webster, Goodspeed and L. H. Bailey. 



" Organization, Reproduction and Heredity in Pediastrum," 

 by Robert A. Harper, Ph.D., Professor of Botany, Columbia 

 University. (See p. 375-) 



I. " Dependence of the Earth's Magnetic State on Solar Condi- 

 tions 1888-1916," and 



H. " The Potentials of Certain Magnetized Bodies," by Louis A. 

 Bauer, Ph.D., Sc.D., Director of the Department of Terres- 

 trial Magnetism, Carnegie Institution of Washington, which 

 were discussed by Professors Webster, and Michelson. 



" Development of Magnetic Susceptibility in Manganese Steel by 

 Prolonged Heat Treatment," by Charles Francis Brush, 

 Ph.D., Sc.D., LL.D., of Cleveland (see p. 344), which was 

 discussed by Dr. Bauer. 



" Accelerometers," by N. W. Akimofif, of Philadelphia, which 

 was discussed by Dr. Webster. 



"Luminescence of Radium Salts," by D. H. Kabakjian, As- 

 sistant Professor of Physics, University of Pennsylvania, 

 and E. Karrer, of Philadelphia. 



Friday evening, 8 130 o'clock. 



Lieut.-Col. Robert Andrews Millikan, Ph.D., Sc.D., spoke on 

 " Science in Relation to the War." 



Saturday, April 20. 



Executive Session, 9 130 o'clock. 

 William B. Scott, Sc.D., LL.D., President, in the Chair. 



On the recommendation of the Officers and Council nominations 

 for foreign membership were suspended by unanimous vote until 

 the number of foreign members is reduced to seventy-five. 



Prof. Ernest W. Brown, on behalf of the Nominating Commit- 

 tee, recommended that the term of service of the curators, like that 

 of Councillors, be limited to three consecutive years. 



