The Bland-Allison Act of 1878 was a response to the Crime of '73 demonetizing silver. Representative Richard P. Silver Dick Bland of Missouri introduced this bill for the free coinage of silver at ratio of 16:1 to gold. Senator William Allison of Iowa added a provision that limited the amount purchased by the U.S. Treasury to between 2 and 4 million dollars worth of bullion per month at market prices which was coined into silver dollars.
This was part of a struggle between silver and bimetal-standard groups with gold-standard forces who tried to repeal it altogether. President Rutherford B. Hayes purchased only the minimum required amount. It was replaced in 1890 by the Sherman Silver Purchase Act.
See also