MINUTES. XV 



In 1 92 1 M. Olinto De Pretto formulated a theory on gravitation 

 that reproduced in part my theory, but he did not cite my work ! He 

 pubhshed a book " Lo spirito dell' Universo " (Turin 1921) in which 

 he attributes gravitation to ether's action. In the review Urania that 

 is published in Turin (x, n. 2, p. 75) there is a recension of it. 



Gravitation is a most important natural phenomenon but hitherto 

 unfortunately problematic. The work of Mr. Brush is valuable and 

 commendable and his experiments are very instructive. But I think 

 that my work is not to be neglected because it contains the priority 

 of the theory and the foundation of the new conception of gravitation. 



Marquis Antonio De Gregorio. 

 Palermo, July 20, 1922. 

 Sicily, Italy. 



The decease was announced of the following members : 



Alexander Graham Bell, LL.D., Ph.D., Sc.D., M.D., near Bad- 

 deck, N. S., on August 2, 1922, set. 75. 



Herman Diels, Ph.D.. at Berlin, on June 4, 1922, set. 74. 



Merrill E. Gates, LL.D., at Littleton, N. H., on August 11, 1922, 

 set. 74. 



Waterman T. Hewett, B.A., M.A., Ph.D., at London, England, 

 on September 13, 192 1, set. 75. 



Henry Marion Howe, A.M., LL.B., LL.D., Sc.D., at Bedford 

 Hills, N. Y., on May 14, 1922, set. 75. 



Jacobus Cornelius Kapteyn, at Amsterdam, Holland, on June 18, 

 1922, ast. 72. 



Alfred G. Mayer, M.E., Sc.D., in Florida, on June 25, 1922, 

 set. 54. 



Joseph T. Rothrock, B.S., M.D., at West Chester, Pa., on June 2, 

 1922, set. 83. 



Coleman Sellers, Jr., M.S., at Bryn Mawr, Pa., on August 15, 

 1922, set. 70. 



Stephen Smith, M.D., at Elmira, N. Y., on August 26, 1922, 

 set. 99. 



Edward Anthony Spitzka, M.D., at Mt. Vernon, N. Y., on Sep- 

 tember 6, 1922, set. 46. 



Ambrose B. Wyckoff, A.B., Lieut. U. S. N., at Ontario, Cali- 

 fornia, on May 30, 1922, set. 74. 



