UNITED STATES 395 



Distribution. Sent gratuitously to a limited list of the greater libraries of the 

 world (about 300). The remainder of the edition (which is usually re- 

 stricted to 1000 copies or less) is held for sale by the Institution at a price 

 only sufficient to cover the cost of publication and transportation to purchasers. 

 All communications should be addressed to the CARNEGIE INSTITUTION OF 

 WASHINGTON, WASHINGTON, D. C. Printed price-list on application. 



Research activities. (i). Large projects, whose execution requires con- 

 tinuous research by a corps of investigators during a series of years, 

 carried on under the direct auspices of the Institution by departments : 

 DEPARTMENT OF BOTANICAL RESEARCH. Desert Laboratory established 



1903 at Tucson, Arizona. Director : D. T. Macdougal. 

 DEPARTMENT OF ECONOMICS AND SOCIOLOGY. Established 1904 for in- 

 vestigations relative to an economic history of the United States. 

 Director : Carroll D. Wright, Worcester, Mass. 

 DEPARTMENT OF EXPERIMENTAL EVOLUTION. Station established 1904 



at Cold Spring Harbor, N. Y. Director : C. B. Davenport. 

 GEOPHYSICAL LABORATORY. Investigations carried on at the U. S. 

 Geological survey and McGill University since 1904. Laboratory 

 erected at Washington, D. C., 1906-07. Director : A. L. Day. 

 DEPARTMENT OF HISTORICAL RESEARCH. Established 1903. Director: J. 



F. Jameson, Washington, D. C. 

 DEPARTMENT OF MARINE BIOLOGY. Laboratory established 1904 at Tor- 



tugas, Florida. Director: A. G. Mayer. 

 DEPARTMENT OF MERIDIAN ASTROMETRY. Established 1906. Director: 



Lewis Boss, Dudley Observatory, Albany, N. Y. 



NUTRITION LABORATORY. Investigations carried on at Wesleyan Univer- 

 sity and Yale University since 1904. Laboratory established at Bos- 

 ton, Mass., in 1906. Director : F. G. Benedict. 



DEPARTMENT OF SOLAR PHYSICS. Solar observatory established 1905 on 

 Mount Wilson, Cal. ; workshops at Pasadena, Cal. Director : George 

 E. Hale. 



Publ: Contributions from the Solar observatory, Mt. Wilson, Cal. no. 

 1-20. [1905-07.] 8. (Reprints mainly from Astrophysical journal.) 



DEPARTMENT OF TERRESTIAL MAGNETISM. Established 1903. Office for 

 the compilation and discussion of data at The Ontario, Washington, 

 D. C. A magnetic survey of the Pacific ocean is in progress and field 

 work on land is being carried on in various parts of the world. Direc- 

 tor : L. A. Bauer. 



The Institution has also granted assistance in connection with the horti- 

 cultural work of Luther Burbank since 1905 and has provided for the 

 publication of the Index Medicus since 1903. 



