A practical Treatise on Metallurgy, adapted from the last German edition of Professor K.'s Metallurgy, by W. Crookes and E. Röhrig ... Illustrated, etc
A three-volume technical treatise on metallurgy, adapted by William Crookes and Ernst Otto Röhrig from Bruno Kerl's German handbook and published in London in 1868 for smelters, assayers and works engineers. The plates are wood-engraved sections, plans and elevations of furnaces, flues and hearths, with hatched masonry and firebrick, italic letter keys, and measured scale bars in metres and feet, offering designers ready-made industrial cutaway geometry and technical hatching patterns.
















































































































































