V NIT ED STATES 



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Membership: Limited to members of the 

 National Park Service. 

 Meetings: Annual. 



1309. Shawnee Geological Society. President: 

 Walter C. Miller, Box 1148, Shawnee, Okla. 

 Term expires May 1961. Secretary: William 

 V. York. Term expires May 1961. 



History: Organized April 5, 1929. Affiliated 

 with the American Association of Petroleum 

 Geologists in December 1931. 



Purpose: To advance knowledge through lec- 

 tures and discussions of geological problems in 

 Oklahoma and the surrounding area, and to 

 promote fellowship among the geologists of that 

 region. 



Membership: Active members, geologists or 

 students of earth science. Total membership 63. 



Meetings: Monthly. 



1310. Shreveport Geological Society. Presi- 

 dent: Frank S. Graver, Jr., P. O. Box 1768, 

 Shreveport, La. Term expires May 1961. 

 Secretary: Pat N. Mason, P. O. Box 1092, 

 Shreveport, La. Term expires May 1961. 



History: Organized December 1919, as the 

 Shreveport Section of the South-Western 

 Geological Society; reorganized October 1924 

 under present title. 



Purpose: To increase geological knowledge, 

 especially that of Louisiana, South Arkansas, 

 and East Texas ; and to promote fellowship 

 among geologists in the area. 



Membership: Active, open to persons engaged 

 in the practice or teaching of geology or related 

 sciences, also all persons who were active mem- 

 bers in good standing on and after October 3, 

 1924; Associate, persons interested in geological 

 science but not actively engaged in the practice 

 or teaching of geology or related sciences ; 

 Honorary, elected at the discretion of the society. 

 Total membership 450. 



Meetings: Monthly, except July and August. 



I3IL Sigma Delta Epsilon. President: Mrs. 

 Ethaline Cortelyou, Aeroprojects Inc., West 

 Chester, Pa. Term expires January 196L 

 Executive Secretary: Elizabeth McLaughlin, 

 702 Butternut Street, N. W. Washington 12, 

 D. C. Term indefinite. 



History: Organized December 1921 at Cornell 

 University, Ithaca, New York. Eighteen Chap- 

 ters in leading universities and colleges, and in 

 large cities. 



Purpose: To further interest in science, to 

 provide a society for the recognition of women 

 in science, and to promote friendship among 

 women in various sciences. 



Membership: Women scientists with degrees 

 who are or have been engaged in original ex- 

 perimental research in natural and physical 

 sciences. Total membership 2,000 active mem- 

 bers. 



Meetings: Annual. 



Professional activities: Sigma Delta Epsilon 

 Fellowships ($1,600), Grants-in-Aid ($500) for 

 graduate or post-doctoral research, capital 

 amount $5,000. Co-sponsored First and Second 

 Conferences on Encouraging Women to Select 

 and Advance in Careers in Science, at annual 

 meetings of American Association for the Ad- 

 vancement of Science. 



Publications: News Letter, semiannual, free 

 to members. Editor : Mrs. Mary Lou Pritchard, 

 6500 Knox Street, Lincoln, Nebr. 



1312. Sigma Phi Delta Fraternity. President: 

 Robert J. Beals, 1503 South Hillcrest Street, 

 Urbana, 111. Term expires January 1, 1962. 

 Secretary: William M. Jermain, 1908 St. 

 Mary's Avenue, Janesville, Wis. Term ex- 

 pires January 1, 1962. 



History: Founded at the University of South- 

 ern California in April 1924. Twelve active 

 chapters (two in Canada) and ten alumni chap- 

 ters (one in Canada). 



Purpose: To promote the advancement of the 

 engineering profession, to foster the advance- 

 ment of engineering education, to instill a 

 greater spirit of cooperation among engineering 

 students and organizations, and to encourage 

 excellence in scholarship. 



Membership: Active, 250, undergraduate stu- 

 dents in engineering; Alumni, 3,650; Faculty, 

 100; Honorary, 3. Total membership approx- 

 imately 4,000. 



Meetings: Biennial in odd-numbered years. 



Professional activities: Alumni chapters pre- 

 sent scholarship awards to active chapters ; 

 Supreme Council sponsors annual Efficiency 

 Contest ; Grand President sponsors expansion 

 award for chapter effort. 



Publications: The Castle, semiannual. Editor: 

 John Gray. The Star, three times a year. 

 Editor : Robert J. Beals. 



1313. Sigma Pi Sigma, Physics Honor Society. 



Physics Department, Pennsylvania State Uni- 

 versity, University Park, Pa. President: 

 Stanley S. Ballard, Physics Department, 

 University of Florida, Gainesville, Fla. Term 

 expires October 1962. Executive Secretary: 

 Marsh W. White. Term expires October 

 1962. 



History: Founded December 1921 at Davidson 

 College, Davidson, N. C, as a local honor society, 

 now national in scope with 107 chapters; asso- 



