£ s. d.
1 inch in the minor axis, or narrowest diameter of the ellipse 1 0 0
1-1/2 ditto ditto ditto 1 10 0
2 ditto ditto ditto 2 0 0
2-1/2 ditto ditto ditto 2 10 0
3 ditto ditto ditto 3 3 0
3-1/2 ditto ditto ditto 4 4 0
4 ditto ditto ditto 5 5 0
Silvering and Polishing Specula.
£ s. d.
5 inch 0 6 0
6-1/2 〃 0 8 0
8-1/2 〃 0 10 6
10 〃 0 15 0
12-1/2 〃 1 1 0
Diagonal Planes 3s. to 0 5 0