The following are the words of the instrument on which this action was founded:- — “We promise to pay Jesse Beene, one hundred dollars for *245fifty thousand staves, which we have liberty to get off his land at the month of Cedar Creek, Dallas county, subject to a deduction for any number we may not get, at two dollars a thousand.” The declaration is in the form, usual, on promissory notes, containing no averment of the number of staves actually got — a judgment by default final, was taken in the Court below, and it is here assigned for error.

1. That the Court erred in giving final judgment, without the intervention of a jury.

2. That the declaration is defective in not aver-ing the number of staves actually taken by the plaintiffs in error. For'the defendant, in this Court, it is contended, that the instrument sued on, though not a promisory note by the law Merchant, technically speaking, yet by the'provisions of the statute of 1812, it is in effect one, due presently, and that if the staves were not got, it was purely a matter of defence to be pleaded, as any other failure of consideration. As to the intervention of a jury, it is insisted that the judgment by default confessed a cause of action for the full amount, and therefore, that there was no necessity for a jury to assess damages. A very slight examination into the intention of the parties to this contract, and the legal effect of the contract itself, will enable us to see whether the errors assigned are well taken. To my mind, it imports nothing more than an agreement that Martin & Hill should be permitted to get staves off the land of Beene to any amount not exceeding fifty thousand, for which they were to pay at the rate of two dollars a thousand. True, they promised to pay one hundred dollars, and this, if taken independently of the. contingency, stated in the writing, would bind them to pay that sum *246immediately. But in as much as they, in effect, only promised to pay at a specified rate, for the staves which they should afterwards get, they were not hound to pay a cent until they had got some of the staves, and then only in proportion to the number received. It was therefore indispensable to aver what staves they had got. Without this, the declaration did not contain a substantial cause of action, and could not be good even under the extensive provisions of'the act of 1824. But if necessary to aver, it, was equally so, to prove this fact, otherwise it did not appear what sum should have been recovered, and the judgment by default could not legally ba rendered for more than nominal damages. As then, the writing itself did not furnish data from which to ascertain the amount, but other proof was needed, a jury should have intervened. We are, then, of opinion, that for the two ‘ errors relied on, the judgment must be reversed, to the writ, and the cause remanded.