Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Books Books 1 - 4 of 4 on ... to 400 feet in thickness), is for the most part siliceous, partaking of the nature....
" ... to 400 feet in thickness), is for the most part siliceous, partaking of the nature of the sandrock that underlies it. The upper portion, known as the Trenton (500 to 600 feet in thickness), is impure from the presence of clayey matter, partaking of... "
The Marble Border of Western New England: Its Geology and Marble Development ... - Page 20
1885 - 68 pages
Full view - About this book

The collection of building and ornamental stones in the U.S. National Museum ...

George Perkins Merrill - Technology & Engineering - 1889 - 372 pages
...known to geologists as the calciferous (300 to 400 feet in thickness), is for the most part siliceous, partaking of the nature of the sandrock that underlies...thickness), is impure from the presence of clayey matter, pactaking of the nature of the slate formation that overlies it. Only certain layers of the middle...
Full view - About this book

Report of the National Museum

United States National Museum - Science - 1889
...known to geologist* as the calciferous (300 to 400 feet in thickness), is for the most part siliceous, partaking of the nature of the sandrock that underlies...it. The upper portion, known as the Trenton (500 to GOO feet in thickness), is impure from the presence of clayey matter, partaking of the nature of the...
Full view - About this book

Annual Report of the Board of Regents of the Smithsonian Institution: 1886

Smithsonian Institution. Board of Regents - 1889
...known to geologists as the calciferous (300 to 400 feet in thickness), is for the most part siliceous, partaking of the nature of the sandrock that underlies...it. The upper portion, known as the Trenton (500 to GOO feet in thickness), is impure from the presence of clayey matter, partaking of the nature of the...
Full view - About this book

Stones for Building and Decoration, Volume 25

George Perkins Merrill - Building stones - 1891 - 453 pages
...known to geologists as the Calciferous (300 to 400 feet in thickness), is for the most part siliceous, partaking of the nature of the sandrock that underlies...that overlies it. Only certain layers of the middle portions seem to have been fitted by their original constitution for the production of marble. The...
Full view - About this book




  1. My library
  2. Help
  3. Advanced Book Search
  4. Download EPUB
  5. Download PDF