356 



Dr. Calvert and Mr. R. Johnson on the 

 Copper and Tin [Bronze). 



Copper and Zinc {Brass). 



Foruiulfe of alloys and per-centages. 



Zii Cu5 



8-673 



8-650 



r Cu82-95 1 

 121117-05/ 



z>'Cu4§::p} ; 8-570 



^"C""izny3-94| ^^^^ 



, r rCu 49-32 1 

 ^»<^"izn50-68| 



7-808 



/~, ,, o f Cll 32-74 1 ; - orn 



^"^"■{Zn 67-26 I ' '^^^ 



^^^^\^^} : ™ 



^^HzV£l} i ^-^^^ 



8-453 

 8-387 

 8-290 

 8-129 

 8319 

 7-489 

 7-334 

 7-237 

 7-174 



0-220 

 0-263 

 0286 

 0-359 

 511 

 0-370 

 0-401 

 0208 

 0-268 



