244 THE HISTORY OF SCIENCE 



REFERENCES 



Alexander Graham Bell, Experiments in Mechanical Flight, 

 Nature, May 28, 1896. 



Alexander Graham Bell, The Pioneer Aerial Flight, Scientific 

 American, Supplement, Feb. 26, 1910. 



S. P. Langley, Experiments in Aerodynamics. 



S. P. Langley, The "Flying Machine," McClure's, June, 1897 

 (illustrated) . 



Langley Memoir on Mechanical Flight, Smithsonian Contributions 

 to Knowledge, vol. 27, no. 3 (illustrated). 



Scientific American, Jan. 13, 1912, A Memorial Honor to a 

 Pioneer Inventor. 



The Smithsonian Institution 1846-1896. The History of its First 

 Half-Century, edited by G. B. Goode. 



A. F. Zahm, The First Man-carrying Aeroplane capable of Sus- 

 tained Free Flight, Annual Report of the Smithsonian Insti- 

 tution, 1914 (illustrated). 



