4. pad 
318 Use of Copper by the American Aborigines. 
tin. This gentlemen informs me, that “The knives, gravers, 
and other implements found by myself in Peru, contain from 
sieee and a half to four per cent. of tin, a is sufficient to 
give them a very considerable degree of hardnes The knives 
took from 
‘cnentepte articles were ; found with it; but these were the only 
ones of metal, except a medal of silver suspended around the 
neck. The chisels or gravers are pointed at one end, with a cut- 
ting edge at the broad part. gn were found at various’ places 
in the northern part of Peru. At the ancient city of Atacama, I 
found several hoes of copper, ented very maiich a the ‘grub- 
bing-hoes’ to be found-in our warehouses.” 
In 1831, arrow-points were discovered cor a sald near 
Fall River, Massachusetts. With this skeleton were found @ cor- 
and a number of rude tubes of the e metal, composing a sort 
of belt or cincture. The schncacinnes are two inches in length, 
and one and one-third inches broad at the base. ‘This skeleton 
the Royal Society. of Antiquaries of D ark. The result of 
the analysis was published by that carat pe & in ae following 
comparative table: 
opper. Zine. Tin. _ Tron. 
Brass from Fall River, 70 29 28:03 091 0. er 0:03 
Old Danish, 13. 2039 924 339 O11 
Modern ie a 16. 27:45. 0:79: 020.2 
It will be seen by the table, that the metallic relics found at 
Fall River bear in their composition a suspicious resemblance to 
modern brass. They certainly differ widely, in this respect, from 
any of the alloys of copper found elsewhere on the continent. 
Without alluding to the rudeness of the workmanship exhibited 
ing them was found buried, after the Indian mode, in a sitting 
posture, and enveloped in bark, places in a very strong light the 
probability that the burial was made subsequent to the first sel- 
pa aa 
os e Indians ef oe pepvicnn to the diseovery by the Spaniards, made use of 3s 
é ‘atad. of Backs metal, found na in the , which is an alloy of iat oe fe 
, zine, and antimony, called rales bs the Spaniard From this they wees 
Mie etree e—itlere Crema Paps 4 
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