24 Captain Sabine's Experiments on the 



Proceeding in this manner, with the times of vibration as 

 given in page 481 of " Pendulum and other experiments," the 

 arcs always between 30° to 10°, and the temperatures as seve* 

 rally noticed, the following results are obtained : 



Madeira, January 12, 1822. In a garden near Funchal, Th. 63° : 

 Needle 3 . . , 440".8 



Needle 4 . . . 441".0 



Mean . 440".9 



Teneriffe, January 17, 1822. On the sea-beach, near the foot of the 

 hills east of Santa Cruz, Th. 67°: 



Needle 4 . . . 434".8 



Needle 5 ... 435".6 



Needle 6 . . . 436".6 



Mean . 371".0 



Island of St. Thomas, Man-of-War Bay, May 20, 1822, Th. 84°: 

 Needle 3 . . . 363".3 



Needle 4 . . . 364".7 



Needle 5 . . . 367".8 



Needle 6 ... 365".l 



Mean . 365".2 



Island of Ascension, July 7, 1822. In the Barrack Square, Th. 84° : 



Needle 4 367".5 



Needle 5 . . 370".8 



Mean . 369",1 



