Phil. Mag. Ser. 6, Vol. 8, PJ. VIL. 
mnt 
es ee 
a 
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Fic. 7—The same, at a point nearer the centre of the strip where the lamellie are 
rather less distorted. 
Frc. 8.—Gold foil annealed and at once etched; showing, for comparison with 6 and 7 
the straight sharp outlines of undistorted lamella or grains, 
