408 



EARLY MAN IN BRITAIN. 



[CHAP. XL 



the percentage of tin in the bronze articles belonging to 

 the Bronze age is as nearly as possible that which is the 

 best for making a compound for cutting purposes, from 

 ten to twelve per cent. It will be seen from the fol- 

 lowing table that there is but little variation in the pro- 

 portions of tin, and not more than might be expected 

 from the rough and inaccurate modes of mixing the 

 metals before the invention of a definite system of 

 weights. 



ANALYSIS OP BRITISH BRONZE ARTICLES OF BRONZE AGE. 1 



1 Wilson, Prehistoric Annals of Scotland, i. p. 374 ; Second Edition. Phillips, Journ. Chemical 

 Soc., iv. p. 288. 



