Metallurgy. 287 
Malleability.—Mr. Anderson states that, “the qualities of this metal 
for forging-purposes would appear to be excellent; with the exception of 
the part heated to a red-heat in the shade, all show that it is a good 
workable material under the hammer almost up to the melting point.” - 
pes } 
yellow brass, an alloy very deficient in rigidity. The specific gravity of 
the dimensions that would be proper in the case of cast steel. All parts 
whie would otherwise be made of steel may with perfect safety, and 
age, be made of the new alloy, particularly such parts 
fixing, tangent, and micrometer screws. Its hardness and 
SoMparative inoxydizability point it out as peculiarly adapted for pivots, 
axes, and bearings. If employed for receiving the graduation of circles, 
the hecessity for inlaying another metal will be obviated, by which two 
ee will be gained: the hammering which forms part of the 
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ges 
poy 
os, use of apprehension. With respect to the 
Ye visibility of divisions cut on this metal, opinions will perhaps differ 
can only say that I should be well content to observe with them.” 
