VOL. XXXVII.J PHILOSOPHICAL TRANSACTIONS. 



Altitudes observed by Mr. John Hadley. 



sai 



Between each of the last five of these observations, the Index was removed 

 so as to naake them entirely independent of each other; and from their near 

 agreement among theinselves, and with good part of the preceding, Mr. Hadley 

 concluded the true height of the sun's centre above the real liorizon at noon, 

 was exactly enough 42° 33', his semidiameter being J6'; from which, and the 

 sun's declination 4° l', the latitude of the place will be 51° 28', which is ac- 

 cordingly used in all the computations. 



Altitudes of the sun observed Sept. I, 1732, afternoon, near the Buoy of 

 the Spile, and under sail westward, by the wooden instrument forwards, the 

 second speculum remaining displaced as in the morning. 



VOL. VII, 4 C 



