. Transactions. 3 4 5 6 7 8 9 10 1,900° F. 1


. Transactions. 3 4 5 6 7 8 9 10 1,900° F. 1 2 3 4 5 6 7 8 9 10 Kepeated Use at 1,750°. Ist 102d 103d 10 4th 10 420 COMMERCIAL TIME IN HOURS hr+H-^+-f^-i _ I 4_L_^4__L_^_iH n


Size: 2297px × 1088px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries