on some ancient metallic Arms and Utensils . 423 
Another specimen of tin - - 7,25 
3. Zinc ----- 7,171 
Ditto, another specimen - 7,150 
4. Allay of copper with its weight of tin ; three dif- 
ferent parts of the same ingot r - 8,764 
8,760 
8,611 
5. Allay of copper with ~ its weight of tin, in the state 
of ingot _____ 8,760 
6. Allay of copper with ~ its weight of tin - 8,700 
Ditto, another piece of the same ingot - - 8,677 
7. Allay of copper with -Jg-i its weight of tin ; two spe- 
cimens of the same ingot - 8,658 
8,671 
8. Allay of copper with i its weight of tin ; two spe- 
cimens of the same ingot - 8,510 
8,6 
9. Allay of copper with its weight of tin ; two spe- 
cimens of the same ingot - 8,790 
8,711 
10. Allay of copper with y its weight of tin ; two spe- 
cimens of the same ingot - 8,766 
8,53° 
11. Allay of copper with ± its weight of tin, in one 
large piece, as it cooled in the crucible - 8,635 
12. Allay of copper with \ of its weight of tin ; two 
different parts of the same ingot - - 8,966 
8,928 
13. Allay of copper with i of its weight of tin ; two 
different parts of the same ingot - - 8,944 
8 ,909 
3 I 
MDCCXCVI. 
