is accordingly unusually small. The examples, it will be seen, present every requisite of variety, including weapons, implements, and vessels, from Fife, Mid-Lothian, and Berwickshire, selected solely as furnishing a comprehensive diversity in the elements of comparison. The following are the results of the analyses and the description of the process by which they were obtained, nearly the whole of the experiments having been repeated several times:-- ANALYSES OF ANCIENT BRONZES. +------------------+-------+-------+-------+-------+-------+-------+ | |No. 1. |No. 2. |No. 3. |No. 4. |No. 5. |No. 6. | +------------------+-------+-------+-------+-------+-------+-------+ |Copper, | 92.89 | 88.51 | 88.22 | 88.05 | 84.08 | 81.19 | |Tin, | 5.15 | 9.30 | 5.63 | 11.12 | 7.19 | 18.31 | |Lead, | 1.78 | 2.30 | 5.88 | 0.78 | 8.53 | 0.75 | | +-------+-------+-------+-------+-------+-------+ | | 99.82 |100.11 | 99.73 | 99.95 | 99.80 |100.25 | |Loss, | 0.18 | ··· | 0.27 | 0.05 | 0.20 | ··· | |Gain, | ··· | 0.11 | ··· | ··· | ··· | 0.25 | | +-------+-------+-------+-------+-------+-------+ | |100. |100. |100. |100. |100. |100. | | +-------+-------+-------+-------+-------+-------+ |Specific Gravity, | 6.37 | 6.23 | 6.77 | 8.27 | 7.75 | 6.16 | +------------------+-------+-------+-------+-------+-------+-------+ "These bronzes were first carefully qualitatively analyzed, and found to consist of copper, tin, and lead. Zinc, bismuth, antimony, and silver were carefully sought for, but could not be found. It is probable, however, that a minute trace of the last metal, too small to admit of detection, was present, not, however, as an artificial addition to the alloy, but as a natural accompaniment of the lead. "In the quantitative analysis, a weighed portion of the bronze was digested in nitric acid, which dissolved the copper and lead, and converted the tin into the insoluble white peroxide. This was collected on a filter, carefully washed, dried, and weighed, after the filter had been burned. The filtered solution containing the copper and the lead was then evaporated to dryness along with a portion of sulphuric acid, which converted the lead into the insoluble sulphate of that metal. This was collected on a filter, treated like the oxide of tin, and weighed. The solution of copper which passed through the filter was precipitated by solution of caustic potass added in excess, and kept at the boiling point till the oxide of copper became dark brown. It was then collected on a filter, washed with boiling water, and weighed after the combustion of the filter.