By the Court,
Cole, J.Although a number of exceptions were taken upon the trial of this cause, to the ruling of the circuit court upon the admission or exclusion of certain testimony, still we do not consider it necessary to notice them at length, and shall therefore confine ourselves chiefly to an examination of that portion of the charge upon the question of damages, which was as follows: The circuit court charged the jury that if they found the plaintiffs were entitled to recover, then they were entitled to recover pay for the profits of the mill for the unexpired portion of their term; also to pay for extra labor in hauling the logs in the yard to another mill to be sawed, and the cost of sawing the same over and above what it would have cost the plaintiffs to have manufactured them into lumber at their mill; upon which sum (the profits of the mill for the unexpired portion of the lease, the extra labor in hauling the logs to another mill, and the extra cost of sawing the same), the plaintiffs were enti-*33tied to interest from tbe time of the expiration of the lease to the present time.
The action was brought to recover damages for the breach of an agreement to repair contained in a lease of a saw mill. The appellants had leased their steam saw mill to the respondents for one year from November 21st, 1853, and among other things agreed to make all repairs which should cost over five dollars and which it would be necessary to have made to keep the mill and machinery in a proper running condition. About sixty days before the expiration of the lease the engine gave out, and the appellants refused to repair it. It appeared that it would have cost more than five dollars to repair the engine. At the time the mill stopped the respondents had in the yard, ready to be sawed into lumber, about six hundred logs. These logs the respondents had to draw several miles to another mill to be cut up into lumber. One of the respondents testified that the use of the mill was worth $10,50 per day for sawing lumber by the thousand, and that it would have been worth that sum for the residue of the lease had it been kept in repair. He further stated that the mill averaged for 60 days before the break down 7,500 feet per 24 hours, and that the cost of manufacturing lumber at the mill was $2 per M. He also testified that it cost $3 per M to manufacture the 600 logs into lumber at the mill to which they were hauled, and that three of the logs would make a thousand feet of lumber. Under the instructions of the court as to the rule of damages the jury rendered a verdict for $1,809, in favor of the respondents. It is quite apparent that the jury must have allowed the respondents for the use of the mill for the unexpired term $10,50 per day; also the extra labor or expense of drawing the 600 logs to another mill to be sawed, and the cost of sawing the same over and above what it would have cost the respondents to manufacture them into lumber at their mill, and interest upon these several sums from the expiration of the lease to the time of trial. Was this the correct rule of damages applicable to the facts of the case? We think not. From the lease we are satisfied that it was the duty of the appellants to make all repairs which *34should cost over five dollars. This they had expressly stip- and agreed to do. Their counsel contend that the re-sp0n¿eilts should have repaired the mill and occupied it for the remainder of the term. Whether the respondents would have had a right, under the lease, to make these repairs and charge the lessors with the expense, it is not necessary to determine. They did not choose to make the repairs, and they were under no obligation to make them. The evidence shows that the injury to the engine was serious, and it is questionable whether it could have been easily repaired. Certainly it would have taken some time to repair it, and there was only two months of the lease unexpired. The parties expressly agreed who should make certain repairs. All costing over five dollars were to be made by the lessors. It was their duty then to repair the engine. Not having done so, what damages should they pay for the breach of their agreement? In the first place, we can see no objection to giving the respondents the fair value of the use of the mill for the unexpired portion of the term, subject to the qualification hereinafter mentioned. The mill was of no sort of use to them except to manufacture lumber. And when the motive power gave out nothing further could be done with it. One of the respondents testified that it was worth for the residue of the term $10,50 per day, to manufacture lumber. This being so, why ought they not to recover damages at that rate during the continuance of the lease, excepting therefrom the time they would use it to saw their own logs ? We know of no sound principle of law or reason which would be violated in permitting them to do so. It is said that this would be allowing damages on the basis of a calculation of profits, which, it is contended, is inadmissible. But the case of Griffin vs. Colver, 16 N. Y. R., 489, to which we are referred by the counsel for the appellants, fully sustains the rule we have laid down. That was an action upon the breach of a contract to deliver, at a certain day, a steam engine built and purchased for the purpose of driving a planing mill and other definite machinery, and the court held that the ordinary rent or hire which could have been obtained for the use of the machinery when operation was suspended *35for want of tbe steam engine, might be recovered in damages. In delivering tbe opinion of tbe court in that case, tice SeldeN uses tbe following language, which we think quite apposite to the point we are now considering: “ The broad, general rule,” says the judge, “in such cases is, that the party injured is entitled to recover all his damages, including gains prevented as well as losses sustained; and this rule is subject to but two conditions: The damages must be such as may fairly be supposed to have entered into the contemplation of the parties when they made the contract, that is, must be such as might naturally be expected to follow its violation ; and they must be certain both in their nature and in respect to the cause from which they proceed.” In the present case it was very easy to ascertain the profits which were the direct and immediate results of operating the mill for sixty days. The respondents had logs enough on hand to stock the mill for about one half of that time, and timber standing near the mill sufficient to supply it for the rest of the time. What therefore could be made in running the mill per day, over and above all expense of rent, labor, &c., was. susceptible of exact and definite proof. It is not like profits anticipated from being able to perform some dependent and collateral undertaking to the principal business of running the mill, but related to gains or profits arising from the business itself, and constituting a portion of the contract. The respondents, when they rented the mill, considered what it would be worth to them per year, or month, &c. The profits upon the manufacture of lumber were so much per thousand, and it was therefore an easy matter to ascertain the gross earnings of the mill. We therefore suppose the profits or earnings of the mill would constitute a proper item in estimating the damages resulting from the breach of the agreement to repair. Masterton vs. The Mayor, &c., of Brooklyn, 7 Hill, 61; Blanchard vs. Ely et al., 21 Wend., 342.
When the mill stopped, the respondents had likewise on hand some 600 logs, which they were compelled to draw to another mill to be sawed. The circuit court instructed the jury that the respondents were entitled to recover for the extra labor in hauling these logs to another mill to be saw-*36e<^’ an<^ °0S^ saw^r® ^e saine above wbat it would cost them to manufacture tbem into lumber. These damages were the direct and proximate result of tbe breach of, and were properly allowed. See Driggs vs. Dwight, 17 Wend., 71; Blanchard vs. Ely, supra.
But it will be observed that while the respondents were allowed damages for the use and occupation of the mill, at the rate of $10,50 per day for the unexpired term of their lease, they were not charged with what it would have cost them to manufacture the 600 logs into lumber at their own mill. According to the testimony of one of the respondents it would have cost them $2,00 per thousand feet, and it would have taken them about a month to saw up the 600 logs. Now it is very clear that they should either not recover for the use of the mill during the time they would have necessarily employed it in sawing their own logs, or they should be charged with the expense of sawing them. Otherwise they recover double damages. To make this the more obvious, suppose the respondents, when the engine ■gave out, had had logs enough on hand to have stocked the mill during the remainder of their term. Then had .they run the mill, their profits for the use and occupation thereof would have been in their lumber manufactured. But suppose when the mill failed, the appellants, instead of repairing it, as they agreed to do, had elected to have sawed for the respondents just this amount of lumber, at what it would have cost them to manufacture it at the leased mill, how, then, could the latter have been injured by the breach of the contract? ■ Obviously they would not have been injured at 'all. Eor they would have the same quantity of lumber, &nd at precisely the same cost to themselves, as though they had manufactured it at the mill which they had leased of the appellants. So it is manifest that, the proper rule for estimating this portion of the damages in the case was not to allow the respondents $10,50 per day for the use of the mill for the time it would have taken them to saw their own logs. We have assumed all along that $10,50 per day was a fair and reasonable value for the use of the mill, because ■this was the highest estimate placed upon it at the trial. *37But, of course, tbis is entirely a matter to be determined by tbe jury upon tbe evidence relating to tbat point.
Tbe circuit court likewise told tbe jury tbat tbe respondents were entitled to interest upon tbe several items of tbeir . . claim from tbe expiration of tbe lease to tbe time of trial. It might bave been more accurate to bave instructed tbem tbat it was discretionary with tbem to give interest or not. Tbe rule is tbus laid down upon tbis subject by Judge Washington, in Willings et al. vs. Consequa, Peters C. C. R., 172: “It is generally in tbe discretion of tbe jury to give interest in tbe name of damages; although it is not conformable to legal principles'to allow it on unliquidated and contested claims, sounding in damages.” Tbis discretionary rule has been applied to many cases of unliquidated demands arising upon contract, where tbe delinquency of tbe party in default has been such as to warrant tbe jury in giving interest as damages. Dox et al. vs. Dey, 3 Wend., 356; Willings vs. Consequa, supra; Gilpins vs. Consequa, Peters, C. C. R., 95; Watkinson vs. Laughton, 8 Johns., 213; Amory vs. McGregor, 15 id., 23; see also Walrath vs. Redfield, 18 N.Y., 458; Belavan Ins. Co. vs. Delaunie, 3 Binney, 295; Uhland vs. Uhland, 17 S. & R., 265; Sedg. on Dam., 386.
We think, within tbe above authorities, it was in tbe discretion of tbe jury to give interest in tbe name of damages in tbis case.
But for tbe reason afready given, tbe judgment of tbe circuit court must be reversed, and a new trial ordered.