Universal bimetallism and an international monetary clearing house, together with a record of the world's money, statistics of gold and silver, etc. /

by Rothwell, Richard P. (Richard Pennefather), 1836-1901
New York : The Scientific publishing company, 1893

Report upon the property of the Canada Consolidated Gold Mining Company, at Marmora, Ontario /

by Rothwell, Richard P. (Richard Pennefather), 1836-1901
New York : [publisher not identified], 1880

Report on the Stone Hill Copper Mines and Works, Cleburne County, Alabama.

by Rothwell, Richard P. (Richard Pennefather), 1836-1901
[New York, 1877

Louis Edouard Rivot Lectures on Mining Engineering,

by Rivot, Louis Edouard, 1820-1869, Rothwell, Richard P. (Richard Pennefather), 1836-1901