VI INTEODUCTION 



made, and the present bibliography is designed to render available the 

 material contained in the Smithsonian collection. The titles have been 

 compiled from the original publications and previous bibliographies, such 

 as Tissandier, Wouwermans and others, and an effort has been made to 

 include all articles that have a direct bearing on the subject. 



The matter has been arranged alphabetically by authors, subjects and 

 titles. The bibliography contains nearly 13,500 titles, covering the sub- 

 ject up to July, 1909. While a classification of aeronautical literature 

 has not been attempted, cross-references have been made to important 

 phases of the subject. Aeronautical patents have not been indexed. 

 • In an appendix to the volume are added the titles of the important aero- 

 nautical papers in the Bulletins of the Aerial Experiment Association and 

 .the " Beinn Bhreagh Eecorder," through the courtesy of Dr. Alexander 

 Graham Bell. These papers were received for indexing after the main 

 portion of the bibliography had been paged, and could therefore not be 

 included in the body of the work. 



To the Secretary of the Institution, Dr. Charles D. Walcott, and to 

 Dr. Cyrus Adler, until recently Assistant Secretary in charge of Library 

 and Exchanges, is due the credit of recognizing the importance of a publi- 

 cation of this nature and its subsequent preparation under the auspices 

 of the Smithsonian Institution. In conformity with the general rule of 

 the Institution this bibliography has been considered and approved by a 

 Special Committee consisting of George 0. Squier, Ph. D. (Johns Hop- 

 kins University), Major, Signal Corps, U. S. Army, Chairman; Dr. A. F. 

 Zahm, and Mr. Leonard C. Gunnell. For valuable suggestions acknowl- 

 edg-ment is also due to Mr. Octave Chanute, Dr. Alexander Graham Bell, 

 the late Lieutenant Thomas E. Selfridge, U. S. Army, Professor A. Law- 

 rence Eotch and Mr. James Means. 



Paul Brockett 



Apkil 11, 1910 



