Manganine Rod. 
Turned from a Bar supplied by Messrs. W. T. Glover. Composition '84 Cu, *04 Ni, T2 Mn, approx. 
Density at 22° C. = 8'42. 
ci 2 = 1'90 centims., approx, k = '032 to '052, therefore b' = '20, x A = '30, x B = 2'60, x c = 2'90, x c , — 3'03 centims., 
s = 1 '83 sq. centims. 
422 
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* See note on page 407. 
