Merrill, George P. · John Wiley & Sons, Chapman & Hall, Ltd., · leaf 215
PLATE IX. … View looking East, and showing almost vertical position of beds, (From photo-graph by L. II. Merrill.) To face Page THE ARGILLITES: SLATES. This is of deep blue-black color, of fine and even texture, andsplits readily with an even surface into slabs of moderate thin-ness. It is apparently less…
Decoration and ornament, Architectural · Quarries and quarrying · Building stones
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
