[ 37 8 ] 
LX. Obfervations made at the Cape of Good 
Hope ; by Mr. Charles Mafon and Mr. 
Dixon ; reduced to apparent Time by Mr. 
Mafon. With an Appendix. 
Read April 22, 1762. 
TABLE for the objed-glafs micrometer, applied 
to the object-end of the tube of a refle&ing tele- 
fcope of two feet focal length, its focal length 
being 495.48 inches. 
Inches. 
1 
2 
3 
4 
5 
Angle. 
Decimals 
of an inch. 
Angle. 
Divifions 
ofVernier. 
Angle. 
/. // 
/ n 
// 
7 5-9 
.05 
0 21.3 
1 
0.852 
14 11. 9 
.10 
O 42.6 
2 
i -7 
21 17.8 
•15 
i 3-9 
3 
2.6 
28 23.8 
.20 
1 25.2 
4 
3-4 
35 29.7 
.25 
1 46.5 
5 
4-3 
2 7.8 
6 
5 -i 
•35 
2 29.1 
7 
6.0 
.40 
2 50.4 
8 
6.8 
•45 
3 Ix *7 
9 
7-7 
.50 
3 33 -° 
10 
8.5 
•55 
3 54-3 
11 
9.4 
.60 
4 15-6 
12 
10.2 
• 6 5 
4 3 6 -9 
*3 
11. 1 
.70 
4 58.2 
14 
11. 9 
•75 
5 ! 9-5 
15 
12.8 
.80 
5 40.8 
16 
13.6 
.85 
6 2.0 
i 7 
14.5 
.90 
6 23-3 
1 8 
15-3 
•95 
6 44.6 
*9 
16.2 
1.00 
7 5-9 
20 
21 
22 
23 
24 
25 
17.0 
17-9 
18.7 
19.6 
20.4 
21.3 
Memo- 
