This action was instituted by appellants, to recover damages for the alleged breach of a mining contract by which appellants agreed “to lease Avhat is known as B mine, w'hich shall comprise all the coal that will be dumped over B chute and dumped in B bin,” and to mine coal therein for appellee. By the terms of the agreement which is set out in haec verba in the complaint, appellants were “to give their undiAdded personal attention to the running of the mine,” to mine the coal and load it on the cars for appellee, to keep the tram cars in repair, and to do all the work and furnish all the materials necessary to be done and furnished in the operation of a coal mine, except bank ties, 2x3 tracking, T iron, iron spikes, nails, tram cars, posts and caps, w'hich were to be furnished by appellee, and the latter was to “furnish feed (hay, oats and corn), oil, tram cars, repairs to the tram cars, brattices, either cloth or lumber, at what it costs for getting, adding 10 per cent.” All the work Avas to be done under the supervision and control of the engineer and superintendent of appellee, and the latter was to fix the maximum *433wages to be paid to tbe miners, to keep tbe time of tbe men employed in the mine, and to pay them on tbe regular pay-day out of any funds that might be in its bands belonging to appellants. Appellants “bind themselves to load on an average of not less than 150 tons of coal per day and to increase it to 300 tons,” and other clauses of tbe agreement provide that they are to “get all tbe coal out up to tbe specified amount that may be named” by appellee, and appellee “shall have the power 1.o reduce or increase tbe number of miners from time to time according to tbe amount of orders that tbe party of tbe second part [appellee] has to fill.” For tbe performance of the work stipulated to be done, appellants were to receive seventy-three cents for each ton of coal loaded on tbe cars for appellee. There Avere other provisions of tbe agreement, but they' are not material to tbe questions presented by the appeal. Tbe assignments of breach are, first, that “defendant stopped plaintiffs from Avorking in said B mine, and defendant lias eArer since refused to allow plaintiffs to mine coal in said mine under said contract;” and, second, “defendant did not furnish plaintiffs feed, oil, tram cars, repairs to tram cars and brattices at Avhat it cost defendant for getting, with ten per cent, added, but defendant charged plaintiffs a large sum in excess of the cost of said articles furnished by defendant to plaintiffs under said contract, with ten per cent, added.” There Avas a demurrer to tbe complaint, tbe principal grounds relied on being that there was no sufficient breach of the contract assigned,- and that tbe contract was void for uncertainty, in that no time was specified therein during Avhich it was to continue, or that it Avas a mere contract of employment terminable at tbe will of either party. Tbe demurrer having been sustained, trial was bad on the common counts for money bad and received, work and labor done, etc., and resulted in a verdict for appellants for $20, and from the judgment rendered, they appeal, assigning as error tbe ruling of tbe court -sustaining tbe cause of demurrer.
Although the term “lease” is used in tbe agreement, it is not seriously contended, and cannot be successfully maintained, that the agreement constitutes a lease. Christensen v. Pacific Coast Borax Co., 38 Pac. Rep. *434(Ore.) 127; Hudepohl v. Liberty Hill Con. Min. & Water Co., 80 Cal. 553; Hammond v. Winchester, 82 Ala. 477. If not a lease,, it can be construed only as a contract of employment, and unless its terms expressly specify, or the consequences and incidents appurtenant to the terms and provisions thereof indicate, the time during which the employment was to continue, it was dearly terminable at the will of either party.- — Howard v. East Tenn., Va. & Ga. R. R. Co., 91 Ala. 268. No period for its continuance is specified therein, but the construction insisted on by the appellants, is, that they were to be permitted to get out, and appellee was to receive and pay for, all the coal in B mine, which is alleged in the complaint to be 160,000 tons, and that the agreement ivas, therefore, to continue for such time, as might be necessary' to work out the mine. This construction is based on the theory that the contract is an entire undertaking for the performance of specific work, namely, the mining of all the coal in B mine and loading it on the cars for appellee. We are of the opinion both the theory and the construction founded on it are repelled by those provisions of the agreement by which the output was to be controlled entirely by appellee, or at least by circumstances not under the control of appellants. The term “B. mine,” standing alone, has no definite meaning as to the area of coal-bearing land connected with it, and the words, “which shall comprise all the coal that will be dumped over B. chute or dumped in B. bin,” are, we think, descriptive merely, intended to define what is meant by “B. mine,” rather than to indicate the quantity of coal appellants bound themselves to get out and appellee was obliged to receive and pay for. That is to say, the operations of appellants were to be confined to such area as could, by the usual and ordinary methods of mining, be advantageously worked by the use of the one shaft or opening, the one chuté, and the one bin described in the agreement. But the fact that they were thus restricted to this area does not manifest an intention that the one party should .be bound to work out this entire área, or that the other should be required to receive and pay for all the. coal therein to be mined and. loaded by the former. It is this supposed intention that is rebutted by the provisions *435referred to. Although appellants agree to get out not less than 150 tons per day, and to increase the output to 300 tons, this stipulation was not intended to measure the average amount t'hev were to have the absolute right to mine, and appellee was to be required to receive, each day, but only to indicate the condition, as to capacity, in which the mine was to be placed and kept by them. They were simply to be prepared to mine this amount if called upon to do so by appellee. This is made manifest by the subsequent provisions that they were to “get all the coal out up to the specified amount that may be named by the party of the second part,” and that appellee should “have the power to reduce or increase the-number of miners from time to time according to the amount of orders, that the said party of the second part .[appellee] has to fill.” Appellants could not be required to get out more than 300 tons per day, but up to this amount the output was entirely subject to the orders given by appellee; that is to say, they were to get out all the coal “that may be named by the party of the second part” “up to the specified amount,” 300 tons. The output might, therefore, vary from one ton, or none, per day to 300 tons, and the time required for the performance of their contractual obligations by appellants, under this construction, would vary greatly. It clearly appears from the agreement that appellee owned other mines, operated either by itself or by contractors like appellants, and was engaged in the business of selling or using the coal mined. If it had orders from its customers to fill, or required any coal for its own use, it had the right, so far as anything appears to the contrary in the agreement, to supply the amount required either from the mines operated by itself, or from those operated by its other contractors, if there were others. If the capacity of its mines were insufficient to meet such demand, it had the right to increase it to any extent necessary to enable it to fill all its orders without calling on appellants for a single ton. In other words, there is nothing in the agreement that binds the appellee to give to the appellants any orders, or that gives to appellants an absolute right to mine and load any coal. It is for these reasons we conclude that the agreement leaves the output of the mine entirely within the control of appel*436lee, who, if the contract be an entire undertaking, can indefinitely postpone performance of it by appellants. It expressly reserves the right to reduce the number of miners employed in the mines from time to time according to the orders it has to fill, and hence it had the power to cause all operations in the mine to cease by discharging all the miners, and to be resumed at its pleasure, accordingly as it saw fit to have its orders filled at this particular mine. Such are the consequences and incidents necessarily resulting from and appurtenant to these unambiguous provisions of the agreement, and they rebut the theory that the parties intended the contract to be an entire undertaking to mine out all the coal in the mine, since such theory would, require for the performance of the contract by the appellants an indefinite period, depending entirely on the will of appellee, perhaps beyond their life-time, or beyond the time during which they could “give their undivided personal attention to the running of the mine,” as required by the agreement. It cannot be presumed, nor inferred from anything in the agreement, that they intended to assume obligations having such consequences. If such construction be adopted, they have obligated themselves to stand always prepared, perhaps for the remainder of their lives, with men and money and their personal supervision, to get out and load on the cars 300 tons of coal each day, although they may not be called upon for years to furnish a single ton, and have rendered themselves liable to respond in damages for any failure to be thus prepared. It is undoubtedly a hardship on them to lose the money and time they have presumably expended on the mine, but it Avould be a greater hardship to bind them prepetually by a contract having these consequences and incidents arising from the construction contended for. We conclude, therefore, that the contract is not an entire undertaking to mine all the coal in B. mine, and was not intended by the parties to be such, and there being no time specified during which it was to continue, it was terminable at the will of either party, and, therefore, furnishes in itself no criteria by which a breach assigned for its discontinuance can be compensated.
*437It might be conceded for the purpose of this appeal, that the agreement ivas an entire undertaking to mine all the coal in the mine, and also, that, if appellee had any orders for coal to fill, appellants were entitled to furnish the coal necessary to fill them, and yet the complaint would not be aided by the concession. The first assignment of breach is, that “defendant stopped plaintiffs from working in said B. mine, and defendants have ever since refused to allow plaintiffs to mine coal in said mine under said contract.” Construed most strongly against the plaintiff, this does not show any breach of the contract, even under the construction contended for, since, if the defendant 'had no orders to fill, it had 'the right, as we have seen, to stop all work in the mine, and to refuse to allow any coal to be mined. The complaint does not aver that defendant had any orders to fill at the time it caused plaintiffs to cease mining coal, or has had such orders at any time since then. The language used is not equivalent to an averment that defendant had refused to permit plaintiffs, to perform their obligations in any respect, or that it has dispossessed them, or taken charge of and operated the mine by itself or through others. The second assignment of breach in the original complaint is also insufficient. It shows that defendant did furnish the articles specified in the agreement, but “charged” for them a sum in excess of the cost price with ten per cent, added. It cannot be inferred from the use of the word “charged,” and it is not otherwise averred, that plaintiffs paid such excess, or were in any way damaged by the “charge.”
The complaint was not aided by the matters averred in the fifth count, which was added by amendment, as to what was said and done by the parties pending the negotiations between them. These matters rested in parol only, and were not admissible either to help out the construction of the written agreement, or as evidence of what was agreed upon.
It may be, that under the common counts, the plaintiffs could have given evidence of all overcharges of which evidence could have been given under the second assignment (as amended) of breach of the special contract, and that sustaining the demurrer to the breach *438worked them no injury. The rule is general, that if a demurrer to a special plea is erroneously sustained, the error is without injury and not a cause of reversal, if it appears that the defendant has had under the general issue the full benefit which could have been derived from the special plea. But that fact must affirmatively appear from the record, and if it does not, the presumption of injury, arising from error clearly shown, must prevail. — Mitcham v. Moore, 73 Ala. 542. The same rule must obtain in reference to a complaint containing special and common counts. When a demurrer is erroneously sustained io a special count, the presumption of injury arising from error must prevail, though it be true the plaintiff under the common counts could have given evidence of all matters which would have been available under the special count, unless it appears that such evidence was introduced. The fact of the introduction of such evidence, does not affirmatively appear, nor is it probable that it would have been received if offered. The error of the court in sustaining this demurrer compels a reversal.
Reversed and remanded.