[ 372 ] 
the houfe where the clock was. When I obferved the fun's 
equal altitudes, I firft adjufted the inftrument ; then I went to 
the room where the clock was, and fet my watch, having a 
fecond hand, exaftly with it; then I returned to the equal alti- 
tude inftrument, and obferved the paflage of the fun’s limb acrofs 
the horizontal wires of the inftrument, according to the time 
fhewn by the watch ; and, immediately after the obfervation, 
went again to the clock, and compared the watch with it, noting 
how much it had got or loft, whence the obfervations were ea- 
fily reduced to the time of the clock. 
ifOa. 8 
D ’s W. L. 
£ Capricorni 
H 
::! 
1 Wire 
j // 
34 2 
Clouds 
2 Wire 
/ // 
34 17 
3 6 304 
3Wire 
/ // 
34 3^ 
Clouds 
Apparent Time 
H / // 
10 45 14 
Star io'N.ofM. 
7? Oft. 10 
D ’s W. L. 
* Aquarii 
14 
14 
19 57 
2 4 57 
20 12- 
25 11 
20' 25 
25 244 
13 2 3 7 
Oftober 8 th and io ,h the clock got 7", 3 upon 24 hours in one. 
revolution of the fixed ftars. 
The foregoing obfervations were all made with the telefcope 
placed upon the common ftand, without the polar axis. The 
obfervations of December 4 th , that follow, were made witln 
the telefcope fixed upon a new and heavier ftand, which was 
rendered more fteady, by two broad feet refting upon feveral 
of the boards at once. The focket for receiving the telefcope 
was cut obliquely in the ftand, fo that it had partly the efieft 
of a polar axis. 
Oftober 28 th , I took down the clock, packed it up, and fent it 
on board a veflel going to the Cape of Good Hope, to return 
again foon, committing it to the care of Mr. Jeremiah Dixon, 
who had obferved the tranfit of Venus over the fun at the Cape. 
He took his paflage on board the faid veflel, in order to fet the 
clock up at the Cape of Good Hope, and examine the difference 
of its going between that place and St. Helena, for determin- 
ing the proportion of the force of gravity at thofe two places. 
The fame day Mr. Mafon fixed his clock up, for my ufe, 
againft a large mafly poft, let deep into the ground, near the 
equal altitude inftrument, at the little Obfervatory. This clock 
was made by Mr. John Ellicott, F. R. S. 
7 I ftill 
4 
