24 
said he had detected traces of lead in almost every analysis of one class 
of ancient bronze, and had come to the conclusion that it had been 
purposely added to give toughness to the metal, an effect which it 
produces if the quantity be small. 
The following table exhibits the results of Mr. Procter’s analysis of 
various articles in the Museum of the Yorkshire Philosophical Society. 
Celts from Westow . 
Celt not labelled . 
Celt from Riggs . 
Celt from Ireland. 
Bronze Vessel . 
Anglo-Saxon fibula, Driffield ... 
Styca (Eanred-Monne). 
Styca (Eadrin-Monne). 
Styca (Eanred-Fordred) . 
Roman Armlet . 
Coin of Constantine . 
Coin of Antoninus Pius. 
Ancient Mexican Idol. 
Arrow-liead, Egyptian. 
Bronze Axe . 
ZINC. 
COPPER. 
TIN. 
83-02 
11-66 
82-37 
15-23 
84-52 
13-42 
86-97 
10-90 
88-4 
10-5 
7*13 
79-56 
9-25 
20 
70-5 
4-5 
25 
62-4 
1-11 
6-1 
89-7 
4-3 
13-64 
80-34 
5-87 
5-1 
86-4 
4-2 
86-42 
10-80 
79-82 
12-18 
IRON. 
77-6 
21-4 
0-28 
91-99 
6-73 
LEAD. 
5-12 
3-30 
1-66 
1-50 
i-4 
3-61 
SILVEK. 
5 
/ SILVER. 
10-2 
GOLD. 
. 1-1 
f GOLD 
[ TRACE. 
0-50 
3-5 
3-80 
8-60 
0-69 
For the analysis of the bronze handle of an Etruscan patera, see 
Report for 1857. 
