Title
Crushing gold bearing ores in mills similar in principle to flour mills
Caption
Crushing gold bearing ores in mills similar in principle to flour mills. Bottom left goats in treadmill; horizontal power transferred to mill, A, through crown-and-pinion. Bottom right men turn capstan and power transferred through tooth-and-pinion. From Agricola 'De re metallica' Basle 1556. Woodcut.
Date
1556
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP15A00_332
License type
Rights managed
Available size
34,5Mb (3,8Mb) / 8,9in x 15,0in / 2678 x 4500 (300dpi)