The result of a comparison of numerous analyses of primitive bronze relics will, I think, lead to the conclusion that their correspondence is not greater than might be anticipated to arise from the experience acquired by isolated workers, when dealing with the same metals, with similar objects in view, while the frequent presence of other metals besides tin and copper may, in the majority of cases, be accepted as additional proof of the unsystematic processes of the old metallurgist; though in some instances we may trace, in the adaptation to a special purpose, the evidence of design. The results of Dr. Pearson's analytic experiments are as follows:-- _The Lituus_ contained a little more than twelve per cent. of tin; _i.e._, about one part of tin to seven and a half parts of copper. Specific gravity, (_before melting_,) 8.3. _The Spear-head_; fourteen per cent. of tin, or somewhat less than one part of tin to six parts of copper; in addition to which it contained the proportion of fifteen grains of silver in a troy pound of the mixed metal. Specific gravity, 7.795. _The Patella_; a little more than fourteen per cent. of tin, or about one part of tin and six parts of copper. Specific gravity, 7.960. _Bronze Scabbard_; a little more than ten per cent. of tin, or about one part of tin to nine parts of copper. Specific gravity, 8.5. _Celts_, Nos. 1 and 2; a little more than nine per cent. of tin, or about one part of tin to ten parts of copper. Specific gravity, No. 1, 8.780; No. 2, 8.680; No. 3, a little more than twelve per cent. of tin, or about one part of tin to seven and a half parts of copper. Specific gravity, (_after melting_,) 8.854.