SECRETARY'S REPORT 151 



High-altitude research with V-2 rockets, by Ernest H. Krause. 



Roentgen rays against cancer, by John G. Trump. 



The optical glass industry, past and present, by Francis W. Glaze. 



The age of the earth, by Arthur Holmes. 



Petroleum resources of North America, by A. I. Levorsen. 



American meteorites and the National collection, by E. P. Henderson. 



Glacial varved clay concretions of New England, by Ray S. Bassler. 



Algal pillars miscalled geyser cones, by Roland W. Brown. 



Concepts in conservation of land, water, and wildlife, by Ira N. Gabrielson, 



The evolution and function of genes, by A. H. Sturtevant. 



The sense organs of birds, by R. J. Pumphrey. 



Insect control investigations of the Orlando, Fla., laboratory during World War 



II, by E. F. Knipling. 

 The golden nematode invades New York, by W. L. Popham. 

 The cork oak in the United States, by Victor A. Ryan and Giles B. Cooke. 

 Remember the chestnut! by Amanda Dim. 

 The numbers and distribution of mankind, by C. B. Fawcett. 

 Mexican calendars and the solar year, by Herbert J. Spinden. 

 Surviving Indiaa groups of the eastern United States, by William Harlen Gilbert, Jr. 

 Recently published Greek papyri of the New Testament, by Bruce M. Metzger. 

 Japanese art — a reappraisal, by Robert T. Paine, Jr. 



Report for 1949. — 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 December 29, 1949: 



Report of the Secretary of the Smithsonian Institution and financial report of 

 the executive committee of the Board of Regents for the year ended June 30, 1949. 

 ix+149pp. (Publ. 3992.) 



SPECIAL PUBLICATIONS 



Smithsonian Mathematical Tables. Hyperbolic functions. Sixth reprint. 

 Prepared by George F. Becker and C. E. Van Orstrand. lii + 321 pp. (Publ. 1871.) 

 1949. 



PUBLICATIONS OF THE UNITED STATES NATIONAL MUSEUM 



The editorial work of the National Museum has continued during 

 the year under the immediate direction of the editor, Paul H. Oehser. 

 There were issued 1 Annual Report, 22 Proceedings papers, 2 Bulletins, 

 and 4 separate papers in the Contributions from the United States 

 National Herbarium, as follows: 



REPORT 



Report on the progress and condition of the United States National Museum 

 for the year ended June 30, 1949. iii+123 pp. Jan. 13, 1950. 



proceedings: volume 97 



Title page, table of contents, list of illustrations, and index. Pp. i-vii, 571-601 

 Jan. 26, 1950. 



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