502 
The Account of a 
For the purpose of ascertaining the situation of the Lizard 
Point, two angles in the following triangle were observed with 
a sextant, viz. 
Naval-Signal-staff" - 77 4 
Western Light-house - 6 o 50 
Lizard Point 
These, with the computed distance from the Signal-staff to 
the Light-house, give the distance of the Lizard Point from 
, ("Signal-staff 241 ol _ . 
the < T1 . Meet. Hence, the distance of the point 
LLight-house 2700J 
from the station on Karnbonellis is 81085 feet, the angle at that 
station, between the Lizard Point and Western Light-house, be- 
ing i° 53' 47". With respect to the means by which the situation 
of the spot, on which Mr. Bradley erected his observatory in 
1769, may hereafter be determined, it will be readily under- 
stood from the following diagram ; where E is the Ea tern 
Light-house, W the Western Light-house, F the Signal-staff, P 
the Lizard Point, and O the place of the Observatory. The dis- 
tance between the spot O, and M,* the place where his meridian 
mark was fixed, we measured and found = 800 feet ; M being 
24 feet north of the line joining the centres of the Light-houses. 
# The person spoken of in Sect. i. Art. 3. as having the care of the Light-houses, 
pointed out this spot. 
