REPORT OF THE SECRETARY. 83 



The Steam Turbiue on Laud aud Sea. By Charles A. Parsons. 



The Development of Mechanical Composition in Printing. By A. Turpaiu. 



Some Facts and Problems Bearing on Electric Trunk Line Operation. By 

 Frank J. Sprague. 



Recent Contributions to Electric Wave Telegraphy. By J. A. Fleming. 



On the Properties and Natures of Various Electric Radiations. By W. II. 

 Bragg. 



Progress in Electro-Metallurgy. By J. B. C. Kershaw. 



Advances in Color Photography. By T. W. Smillie. 



The Structure of Lippmann's Heliochromes. By S. R. Cajal. 



Bronze in South America before the Arrival of the Europeans. By A. de 

 Mortillet. 



Some Opportunities for Astronomical Work with Inexpensive Apparatus. By 

 George E. Hale. 



The Progress of Science as Illustrated by the Development of Meteorology. 

 By Cleveland Abbe. 



Geology of the Inner Earth : Igneous Ores. By J. W. Gregory. 



The Salton Sea. By F. H. Newell. 



Inland Waterways. By George G. Chisholm. 



The Present Position of Paleozoic Botany. By D. H. Scott. 



The Zoological Gardens and Establishments of Great Britain, Belgium, and 

 the Netherlands. By Gustave Loisel. 



Systematic Zoology ; its Progress and Purpose. By Theodore Gill. 



The Genealogical History of the Marine Mammals. By O. Abel. 



The People of the Mediterranean. By Theobald Fischer. 



Ancient Japan. By E. Baelz. 



The Origin of Egyptian Civilization. By Edouard Naville. 



The Fire Piston. By Henry Balfour. 



The Origin of the Canaanite Alphabet. By Franz Prostorius. 



Three Aramaic Papyri from Elephantine. By Eduard Sachau. 



The Problem of Color Vision. By J. M. Dane. 



Immunity in Tuberculosis. By Simon Flexner. 



The Air of the New York Subway. By George A. Soper. 



Marcelin Berthelot. By Camille Matignon. 



Linnsean Memorial Address. By Edward L. Greene. 



IV. SPECIAL PUBLICATIONS. 



As a special publication there was issued for distribution to correspondents 

 the following : 



1806. Classified list of Smithsonian Publications Available for Distribution, 

 May, 190S. Octavo. Pages 40. 



There was also printed for general distribution, without a serial number, a 

 duodecimo pamphlet of 3 pages entitled " The International Catalogue of Sci- 

 entific Literature, Regional Bureau for the United States." This pamphlet 

 gives the purpose, briefly describes the work, and summarizes the results of the 

 International Catalogue. 



A similar pamphlet went to press at the close of the fiscal year : " Rules for 

 the Abbreviation of Titles of Scientific Periodicals in Publications of the Smith- 

 sonian Institution aud its branches." 



V. PUBLICATIONS OF THE UNITED STATES NATIONAL MUSEUM. 



The publications of the National Museum are: (a) The annual report, form- 

 ing a separate volume of the Report to Congress by the Board of Regents of 

 the Smithsonian Institution; (&) The Proceedings of the United States National 



