rorschach planet, 3
*
Armor Plate, showing Varying Crystals and Lines of Welding, etc.
third of four illustrations to J. C. Bayles, Microscopic Analysis of the Structures of Iron and Steel.
Transactions of the American Institute of Mining Engineers XI (May 1882 to February 1883) : 261-274
6 December 2012
tags: iron; lines; rounds; J. C. Bayles