94 REPOKT OF THE SECRETARY. 



volume was sent to the Public Printer in May, 1904, and most of it had been put in 

 type before the fiscal year closed. The contents of this report are as follows: 



1489. Journal of Proceedings of the Board of Regents of the Smithsonian Institu- 

 tion at meeting of January 28, 1903. Report of Executive Committee. Acts and 

 resolutions of Congress. Pages xv-lxi. 



1437. Report of S. P. Langley, Secretary of the Smithsonian Institution, for the 

 year ending June 30, 1903. Pages 1-97, plates i-vii. 



1490. General Description of the Moon. By N. S. Shaler. Pages 103-113, plates 

 i-x, with explanation pages. 



1491. The Pressure due to Radiation. By E. F. Nichols and G. F. Hull. Pages 

 115-138. 



1492. The Sun-spot Period and the Variations of the Mean Annual Temperature 

 of the Earth. By Ch. Nordmann. Pages 139-149. 



1493. Methods of Forecasting the Weather. By J. M. Pernter. Pages 151-165. 



1494. Progress with Air Ships. By Maj. B. Baden-Powell. Pages 169-171, plates 

 i-iv. 



1495. Aerial Navigation. By O. Chanute. Pages 173-181. 



1496. Graham Bell's Tetrahedral Kites. Pages 183-185, plate i. 



1497. Radium. By E. Curie. Pages 187-198. 



1498. Radium. By J. J. Thomson. Pages 199^201. 



1499. Experiments in Radio-activity and the Production of Helium from Radium. 

 By Sir William Ramsay and Frederick Soddy. Pages 203-206. 



1500. The N Rays of M. Blondlot. By C. G. Abbot. Pages 207-214, plate i. 



1501. Modern Views on Matter. By Sir Oliver Lodge. Pages 215-228. 



1502. Modern Views on Matter; the Realization of a Dream. By Sir William 

 Crookes. Pages 229-241. 



1503. The Atomic Theory. By F. W. Clarke. Pages 243-262. 



1504. Intra-atomic Energy. By Gustave Le Bon. Pages 263-293. 



1505. The Electric Furnace. By J. Wright. Pages 295-310. 



1506. High-speed Electric Interurban Railways. By George Gibson. Pages 311- 

 321, plates i-v. 



1507. The Marienfelde-Zossen High-speed Electric Railway Trials. By Alfred 

 (iradenwitz. Pages 323-331. 



1508. The Beginnings of Photography: A Chapter in the History of the Develop- 

 ment of Photography with the Salts of Silver. By Maj. Gen. J. Waterhouse. Pages 

 333-361. 



1509. The Relations of Geology. By Prof. Charles Lapworth. Pages 363-390. 



1510. Terrestrial Magnetism in its Relation to Geography. By Capt. Ettrick W. 

 Creak. Pages 391-406, plates i-ii. 



1511. An Exploration to Mount McKinley, America's Highest Mountain. By 

 Alfred H. Brooks. Pages 407-425, plates i-ix. 



1512. North Polar Exploration : Field Work of the Peary Arctic Club, 1898-1902. 

 By R. E. Peary. Pages 427-457, plates i-i.v. 



1513. The First Year's Work of the National Antarctic Expedition. By Sir Clem- 

 ents R. Markham. Pages 459-465, plate i. 



1514. The Swedish AntarcticExpedition. By Otto Nordenskiold and others. Pages 

 467-479, plate i. 



1515. Food IMants of Ancient America. By O. F. Cook. Pages 481-497. 



1516. Desert Plants as a Source of Drinking Water. By Frederick V. Coville. 

 Pages 499-505, plates i-ii. 



1517. A New Theory of the Origin of Species. By A. Dastre. Pages 507-517. 



1518. The Evolution of the Human Foot. By M. Anthony. Pages 519-535. 



1519. The Name Mammal and the Idea Expressed. By Theodore Gill. Pages 

 537-544. 



