Manchester Meii/oi?s^ Vol. L V. [No. *ZA). 



Plate II. 



Fig. 2. 



Longitudinal section of end of steel "pine-tree" crystal, etched in 



picric acid and photographed by reflected light. 



Scale = 2:1. 



)'. NICKLJ. STLt L INCOT 



'v2a TENoIl r 39 rOM<j LIUH--.- 13% tO' I I F AI'I /• - tC / ^ < i>.^ 

 ELASTJC L iv'n 71 \ ' 



Pig' 3- 

 Steel ingot broken across to sh)vv columnar structure. 



