PLATE 33.
B. Alexander, Lith.
E. & F. N. Spon. London & New York.
PORTION of MINING PLAN shewing PILLAR WORKINGS.
as SHEWN by HAND on PAPER.
as SHEWN by ENGRAVING or LITHOGRAPHY.
[Larger plan] (530 kB)
B. Alexander, Lith.
E. & F. N. Spon. London & New York.
PORTION of MINING PLAN shewing PILLAR WORKINGS.
as SHEWN by HAND on PAPER.
as SHEWN by ENGRAVING or LITHOGRAPHY.
[Larger plan] (530 kB)
![[Larger plan]](#4955813947583698605_plate33lg.jpg.id-3476785568679886410.wrap-0.html.html){kind=link}