102 PEOCEEDIKGS OF REGENTS. 



He also stated that Hon. John B. Henderson and Dr. Alexander 

 Graham Bell had been reappointed Regents by joint resolution of 

 Congress, 



LANGLEY MEMORIAL TABLET. 



The secretary, on behalf of the committee on a memorial tablet 

 to commemorate the work of Samuel Pierpont Langiey in connection 

 with aeronautical science, reported that the committee recommends 

 that there be modeled in low relief a tablet along the lines of Saint- 

 Gauden's work, cast in bronze, in general rectangular shape, to con- 

 tain a bas relief of the bust of Mr. Langiey, and that the last model of 

 the Langiey aerodrome, in full flight, be suggested in the background ; 

 the tablet to bear the lettering : 



SAMUEL PIERPONT LANGLEY 

 1834-1900 



Secretary of the Smithsonian Institution 

 1887-1900 



and to bear also the text of what is known as Langley's Law as to 

 relation of speed to power in aerial motion, as follows: 



These new experiments (and theory also when viewed in their light) show that if 

 in such aerial motion, there be given a plane of fixed size and weight, inclined at such 

 an angle, and moved forward at such a speed, that it shall be sustained in horizontal 

 flight, then the more rapid the motion is, the less will be the power required to sujiport 

 and advance it. 



The committee further recommends that the tablet be placed in the 

 vestibule of the Smithsonian Institution, at the left of the entrance. 



A suggestion was made that the tablet also carry the d^te of the 

 first successful flight of the Langiey model. After discussion, Judge 

 Gray offered the following resolution which was adopted : 



Resolved, That the report of the committee be accepted; that the committee be 

 increased by the addition of Dr. Alexander Graham Bell, and that the report be 

 referred back to the committee with power to act, with the request that the tablet 

 contain an inscription showing the date of the first flight of the Langiey aerodrome 

 model. 



SMITHSONIAN AFRICAN EXPEDITION. 



The secretary read the following letter: 



Nairobi, December 15, -1909. 

 To the Secretary of the Smithsonian Institution. 



Sir: I have to report that the Smithsonian expedition under my charge has now 

 finished its work in British East Africa and is about to leave for Uganda. The collec- 

 tions made in British East Africa include: 



Mammals, large, in salt 550 



Mammals, small 3, 379 



Birds 2, 784 



Reptiles and batrachians, about 1, 500 



Fresh-water and marine fish, about 250 



Total vertebrates 8, 463 



