The people, on their side, responded most cheerfully. Some gave one thing and some another. Some gave service as soldiers, laborers, and artificers; others contributed timber for canoes, cloth for tents, iron for spear-heads and guns, corn and flour, hay, medicines, and money--in short, all sorts of useful things, the results of previous labor and economy on the part of the individual contributors. In return, the contributors received back from the Government a promise, expressed on paper, to repay the commodities borrowed, or their value in money. These promises were of two kinds. In one the promise was made definite as to the time of its fulfillment, and the amount or value of the promise carried interest. These were called bonds. In the other, the promise, although definite, specified no particular time for making it good, and its amount or value was not subject to interest. These latter, from the circumstance that they were written on blue paper, were popularly termed "bluebacks." When the people got the bonds, they put them carefully away, for the sake of the interest that would accumulate upon them; but when they got the bluebacks, they were at first at a loss to know what to do with them. They were in some respects unlike any thing they had ever seen before; and yet there was a very close resemblance between them and the certificates of deposits of gold in the public repository, which they had now been in the habit for some time of using as currency. And as the one promised, on the part of the Government, to pay money equally with the other, there seemed to the public to be no good reason why one should not be used as the representative and equivalent of money as readily as the other.