VI CONTENTS. 



EXECUTIVE COMMITTEE AND BOARD OP REGENTS. 



Page. 



Report of executive committee 91 



Proceedings of Board of Regents 96 



GENERAL APPENDIX. 



Melville Weston Fuller, 1833-1910, by Charles D. Walcott 113 



Ornamentation of rugs and carpets, by Alan S. Cole 125 



Recent progress in aviation, by Octave Chanute 145 



Progress in reclamation of arid lands in the western United States, by F. H. 



Newell 1 69 



Electric power from the Mississippi River, by Chester M. Clark 199 



Safety provisions in the United States Steel Corporation, by David S. Beyer. . 211 

 The isolation of an ion, a precision measurement of its charge, and the correction 



of Stokes's law, by R. A. Millikan 231 



The telegraphy of photographs, wireless and by wire, by T. Thorne Baker. . . . 257 



Modern ideas on the constitution of matter, by Jean Becquerel 275 



Some modern developments in methods of testing explosives, by Charles E. 



Munroe 291 



Sir William Huggins, by W. W. Campbell 307 



The solar constant of radiation, by C. G. Abbot 319 



Astronomical problems of the southern hemisphere, by Heber D. Curtis 329 



The progressive disclosure of the entire atmosphere of the sun, by Dr. H. 



Deslandres 341 



Recent progress in astrophysics in the United States, by J. Bosler 357 



The future habitability of the earth, by Thomas Chrowder Chamberlin 371 



What is terra firma? A review of current research in isostasy , by Bailey Willis . . 391 



Transpiration and the ascent of sap, by Henry H. Dixon 407 



The sacred ear-flower of the Aztecs, by William Edwin Sai'ford 427 



Forest preservation, by Henry S. Graves 433 



Alexander Agassiz, 1835-1910, by Alfred Goldsborough Mayer 447 



Recent work on the determination of sex, by Leonard Doncaster 473 



The significance of the pulse rate in vertebrate animals, by Florence Buchanan . 487 



The natural history of the solitary wasps of the genus Synagris, by E. Rouband . 507 



A contribution to the ecology of the adult Hoatzin, by C. William Beebe 527 



Migration of the Pacific plover to and from the Hawaiian Islands, by Henry W. 



Henshaw 545 



The plumages of the ostrich, by Prof. J. E. Duerden 561 



Manifested life of tissues outside of the organism, by Alexis Carrel and Montrose 



T. Burrows 573 



The origin of Druidism, by Julius Pokorny 583 



Geographical and statistical view of the contemporary Slav peoples, by Lubor 



Niederle 599 



The cave dwellings of the old and new worlds, by J. Walter Fewkes 613 



The origin of west African crossbows, by Henry Balfour 635 



Sanitation on farms, by Allen W. Freeman 651 



Epidemiology of tuberculosis, by Robert Koch 659 



