212 JOURNAL OF THE WASHINGTON ACADEMY OF SCIENCES VOL. 11, NO. 9 



Without giving a specific name to the tangential pull of gravity down the 

 slopes, Ferrel nevertheless clearly showed that the resultant of this reaction 

 and that arising from the law of equal areas was continually at right angles 

 to the direction of motion of bodies, therefore this deflective influence of the 

 earth's rotation is powerless to change velocities but tends continually to 

 change direction of motions. It was made clear in the paper that it is the 

 pull of gravity down the geoidal slopes, not friction, which prevents the super- 

 hurricane velocities exploited in the text-books. 



The paper discussed briefly the equation for the steady motions of the 

 atmosphere under balanced forces, both with and without friction, and for 

 different types of pressure distribution. The application of these equations 

 was shown for the case of an ideal frictionless circumpolar cyclone based on 

 pressure charts for January conditions in the free air at an altitude of 1500 

 meters. The velocities for this circulation are all shown to be reasonable 

 and moderate and are irreconcilable with the super-hurricane polar winds 

 required by the generally accepted mathematical theories when friction is 

 zero. 



The paper was illustrated with experiments and lantern slides, and has been 

 published in full in the Monthly Weather Review for October, 1920. 



Discussion: The paper was discussed by Messrs. Lambert, Breit, Sos- 

 MAN and Kimball. 



W. R. Blair: Weather information for operating concerns (no abstract 

 received) . 



Discussion: The second paper was discussed by Messrs. Brooks (C.F.), 

 Marvin, Smith, White, vSosman, Ferner, Kimball, Frankenfield, and 



C A EVERY. 



annual meeting 



The S42nd meeting and 50th annual meeting of the Society was held 

 at the Cosmos Club December 4, 1920. President Sosman presided, and 25 

 members were present. 



The report of the Secretaries showed the present active membership to 

 be 21.3, with a net gain of 19 for the year. One active member of the Society, 

 Mr. C. H. Sinclair, died during the year. Thirty-seven new members were 

 elected and qualified; 5 were transferred to the active from the absent list, 

 17 were transferred to the absent list, 2 resigned, and 2 were dropped. During 

 the year the Society held 16 meetings for the presentation of papers. The 

 average attendance at these meetings was 44, and the total number of papers 

 read was 37. 



The report of the Treasurer, Mr. J. A. Fleming, showed receipts of $1318.42. 

 Of this amount, $639.25 was from dues, $632.67 from interest, and $46.50 

 from miscellaneous sources. Total 1920 maintenance expenses were $958.62. 

 $490.90 was invested in United States Liberty Bonds. The securities held 

 by the Society amount to $13,500. The report of the Auditing Committee, 

 consisting of W. R. Gregg, Oscar S. Adams and H. F. Stimsonf, was pre- 

 sented by Mr. Gregg, and the reports of the Treasurer and Committee were 

 accepted. 



The report of the Tellers, H. S. Roberts, Charles R. Duvall and S. J. 

 Mauchly, was presented by Mr. Roberts. The Society proceeded with the 

 election of officers, which resulted as follows: President, R. L. Faris; Vice- 

 Presidents, E. C. Crittenden and Walter P. White; Recording Secretary, 

 H- H. Kimball; Treasurer, John A. Fleming. 



