Though the silver agitation did not result in the restoration of free coinage of silver, two compromise measures were passed by Congress under which enormous quantities of silver were added to the country's circulation. The first of these measures was the Bland-Allison Act passed in 1878, which required the Treasury Department to purchase not less than $2,000,000 worth nor more than $4,000,000 worth of silver bullion a month and to coin it into standard silver dollars of 412 1/2 grains, which were again made legal tender. Under the operations of this act about 25,000,000 silver dollars were coined each year for the following twelve years. The act of 1878 provided for the deposit of silver dollars with the United States Treasury and the issue therefor of silver certificates redeemable on demand in the dollars.