SECRETARY'S REPORT 149 



VOLUME 111 



No. 18. Tree growth and rainfall — a study of correlation and methods, by 

 Waldo S. Glock. 47 pp., 7 figs. (Publ. 4016.) Oct. 25, 1950. 

 Title page and tabic of contents. (Publ. 4023.) Dec. 18, 1950. 



VOLUME 116 



No. 1. Comparative studies on the jaws of mandibulate arthropods, by R. E. 

 Snodgrass. 85 pp., 25 figs. (Publ. 4018.) Nov. 16, 1950. 



No. 2. Remains of land mammals from the Miocene of the Chesapeake Bay 

 region, by C. Lewis Gazin and R. Lee Collins. 21 pp., 7 figs. (Publ. 4019.) 

 Oct. 12, 1950. 



No. 4. Precipitation and temperature in Washington, D. C, for 1950 and 

 1951, by C. G. Abbot. 6 pp., 2 figs. (Publ. 4045.) Mar. 1, 1951. 



No. 6. A new species of the Jurassic brachiopod genus Scptirhynchia, by 

 Helen M. Muir-Wood and G. Arthur Cooper, 6 pp., 2 pis. (Publ. 4047.) June 

 5, 1951. 



SMITHSONIAN ANNUAL REPORT 



Report for 19^9. — The complete volume of the Annual Report of 

 the Board of Regents for 1949 was received from the Public Printer 

 on August 24, 1950 : 



Annual Report of the Board of Regents of the Smithsonian Institution show- 

 ing the operations, expenditures, and condition of the Institution for the year 

 ended June 30, 1949. ix+422 pp., 82 pis., 24 figs. (Publ. 3996.) 



The general appendix contained the following papers (Pubis. 

 3997-4012) : 



The formation of stars, by Lyman Spitzer, Jr. 



Tlie origin of the earth, by Thornton Page. 



The 200-inch Hale telescope and some problems it may solve, by Edwin Hubble. 



The detennination of precise time, by Sir Harold Spencer Jones. 



The elementary particles of physics, by Carl D. Anderson. 



Recent advances in virus research, by Wendell M. Stanley. 



Ground-water investigations in the United States, by A. N. Sayre. 



Modern soil science, by Charles E. Kellogg. 



Time in evolution, by F. E. Zeuner. 



More about animal behavior, by Ernest P. Walker. 



The breeding habits of weaverbirds : a study in the biology of behavior patterns, 



by Herbert Friedmann. 

 New Zealand, a botanist's paradise, by Egbert H. Walker. 

 The archeological importance of Guatemala, by A. V. Kidder. 

 Excavations at the prehistoric rock-shelter of La Colombi^re, by Hallam L. 



Movius, Jr. 

 Ronne Antarctic research expedition, 1946-1948, by Commander Finn Ronne. 

 The state of science, by Karl T. Compton. 



Report for 1960. — The Report of the Secretary, which included the 

 financial report of the executive committee of the Board of Regents, 

 and which will form part of the Annual Report of the Board of 

 Regents to Congress, was issued January 8, 1951 : 



