BOOK VII. 257
unequal portions of silver and copper have been mixed with the gold, thirty-seven needles are made in the following way :—
Gold.
Silver.
Copper.
Duellae.
Duellae
Sext-
ulae
Siliquae.
Duellae Siliquae.
ulae *
ist of
12
9
0
0
3
0
0
2nd „
12
8
0
0
4
0
0
3rd „
12
7
5
4th ..
13
8
£
2
£
5th „
13
7
1
4
3
1
8
6th „
13
6
£
8
4
1
4
7th „
14
7
1
2
1
8th ,,
14
6
1
8
3
I
4
9 th „
14
5
i£
4
4
8
10th „
15
6
r£
2
£
nth „
15
6
3
12th „
15
5
£
3
r£
13th „
16
6
2
14th „
16
5
1
4
2
1
8
15th „
16
4
1
8
3
£
4
16th „
17
5
£
0
1
i£
17 th „
17
4
1
8
2
£
4
18th „
17
4
4
2
i£
8
19th „
18
4
1
1
1
20th „
18
4
0
2
1
2 ist „
18
3
1
2
22nd „
19
2
x £
1
£
23rd „
19
3
£
4
1
1
8
24th „
19
2
i£
8
2
4
25th „
20
3
1
26th „
20
2
1
8
1
£
4
27th „
20
2
£
4
1
1
8
28th „
21
2
£
0
i£
29th „
21
2
1
3oth „
21
1
i£
1
£
3ist „
22
1
1
1
32nd „
22
1
£
4
0
1
8
33rd „
22
1
8
i£
4
34th „
23
l£
£
35th »
23
1
8
£
4
36th „
23
1
4
£
8
37th „
pure gold.