¶1This is a bill for the specific performance of what is called in the mining districts a contract of ojfiion. *451The contract bears date July 1, 1880, and is given in full in the margin.
¶2David ~W. Bust, one of the contracting parties, died intestate October 4,1880, and when administrators were appointed they united with the heirs-at-law in transferring the interest ■of the estate to John F. Bust, Ezra Bust and George M. Stevens, and the assignees join with John J. McTavish, Myron E. David and Orrin J. David in filing the bill. The ¡complainants allege the full performance on their part of all -that was required to entitle them to exercise their option .and demand a lease, and they also aver that they elected to -take a lease, and demanded it December 3, 1880.
¶3*452Tbe defendants admit the making of the contract and the-demand of the lease, bnt they deny the performance bY complainants of the conditions precedent. ■ They also rely - upon two principles of law as constituting a complete bar to the relief claimed. These principles may be stated as-follows:
¶41. The contract of option was a mere license to David W.. Rust and his associates, and as such was personal and not. assignable, and when David W. Rust deceased, the license-was by implication of law revoked.
¶51 2. The contract was not such an one as a court of equity-will specifically enforce. By its terms-the lease to be given *453under it might at any time be terminated by the lessees, as to the whole land or any part of it not less than eighty acres, on their giving thirty days’ notice of intention so to >do. The continuance of the lease, if one should be given, would therefore depend on the will of the lessees, who might immediately elect to terminate it. The contract therefore lacks mutuality and equality; and not being mutual •or equal, lacks equity; and for that reason should not be •enforced.
¶6The first of these, as a general principle, is no doubt •sound. Its application to this case might perhaps be disfputed by complainants upon the ground that although the •contract was with David W. Rust and his associates only, jet it provided for a lease that should be assignable. Whether they would be correct in this we shall not inquire, *454for the reason that it is unnecessary in this case, which must be governed by other considerations.
¶7"When a party to a contract appeals to a court for its specific performance, he addresses himself to the judicial discretion. The relief he asks is altogether exceptional, for the general rule is that the party who complains that another has failed to fulfil his engagements, is supposed to have adequate redress at law in recovery of, damages. The court may therefore refuse to grant specific performance in any ease where in its judgment equity does not require it. McMurtrie v. Bennette Har. Ch. 124; Smith v. Lawrence 15 Mich. 499; Blanchard v. Detroit etc. R. R. Co. 31 Mich. 43; Berry v. Whitney 40 Mich. 65; Willard v. Tayloe 8 Wall. 557; Williams v. Williams 50 Wis. 311; Mather v. Simonton 73 Ind. 595. In a few cases a party is suffered to invoke this extraordinary jurisdiction of a court of equity, when it is manifest that the remedy at law is inadequate.
¶8But when a party comes into equity it should be very plain that his claim is an equitable one. If the contract is-unequal; if he has bought land at a price which is wholly inadequate; if he has obtained the assent of the other party to unreasonable provisions; if there are any indications of overreaching or unfairness on his part, the court will refuse to entertain his case, and turn him over to the usual remedies. Chambers v. Livermore 15 Mich. 381; Munch v. Shabel 37 Mich. 166; Mississippi etc. R. R. Co. v. Cromwell 91 U. S. 643; Burton v. Le Roy 5 Sawy. 510. If, for example, the contract is so drawn that the vendor has the option to retain the property or to convey it, performance in his behalf will be refused. Maynard v. Brown 41 Mich. 298. And in each case the court will consider “ whether, in view of all the facts and those doctrines-which are interwoven with the very texture of equity jurisprudence, and in view of the specific peculiarities presented, and the settled principles and maxims of the court, it is-right and proper to entertain the case and administer relief.” Buck v. Smith 29 Mich. 166, 170. These are familiar-principles.
¶9*455But the court will also refuse to interfere in any case where, if it were to do so, one of the parties might nullify its action through the exercise of a discretion which the contract or the law invests him with. The refusal in such a case does not depend of necessity upon any illegality, inequality, or unfairness, but it is sufficiently based upon the impropriety of imposing on the judge the labor, and on the public the expense of an investigation of disputes when the circumstances are such as to preclude any judgment that may be rendered from being final. No court can with reason be called upon to do a vain thing. A familiar instance is that of a contract for the formation of a partnership, which, though it is within the power of the court to enforce it, and it may be done under special circumstances when by its terms the partnership is to continue for a definite period, yet in the absence of a provision to that effect performance will invariably be refused, though the terms be in all respects equal, fair and legal. The reason is that the partnership which the court might establish by its decree, the partiés or either of them might immediately dissolve; and Lord Eldon says “ no one ever heard ” of the: court executing an agreement under such circumstances.. Hercy v. Birch 9 Ves. 357. See also Scott v. Rayment L. R. 7 Eq. Cas. 112; Meason v. Kaine 63 Penn. St. 335; Coll. on Part. 19, 385; Story on Part. § 189; Pars. on Part. 298; Fry on Spec. Perf. 64, 504; Story Eq. Jur. § 666.
¶10All contracts where the party has reserved to himself, or Where the law gives him the authority to render nugatory any decree that ought to be rendered in their enforcement, rest upon the same principle. This was ■ recognized in Marble Co. v. Ripley 10 Wall 339, 359; and more distinctly asserted and decided in Express Co. v. Railroad Co. 99 U. S. 191. In this last case the very strong assertion is made that “ a court of' equity never interferes where the power of revocation exists.”
¶11It is also assigned as a reason why specific performance should not be decreed in this case, that the terms of the contract as respects the manner of Avorking, the extent to which *456operations should be carried on, and the consequent royalty, are such that they cannot be enforced so as to do justice to the defendants after lease given, without the constant supervision of the court so long as the lease shall continue, to compel the lessees to proceed with their operations and to prosecute mining to such an extent as shall be reasonable and just. There are undoubtedly some difficulties in the •case, of much the same nature with those encountered in Blanchard v. Detroit etc. R. R. Co. 31 Mich. 43; but as we refuse relief on other grounds, their consideration is not important here.
¶12It is urged on the pai’t of complainants that the recognition and enforcement of these contracts of option is absolutely essential to the development of the mineral resources of the State ; and it may be and probably is the fact that they perform a convenient and useful function. But it does not follow from that fact that the party must have this specific remedy. He is supposed to rely tipon his right to an action for the recovery of damages in all cases where it is not consistent with the principles of equity that he, should have other redress. Denying specific performance does not deny the legality or obligation of the contract: it denies merely that the case is one of equitable cognizance.
¶13The decree must be reversed and the bill dismissed with costs of both courts.
¶14This memorandum of agreement, made and entered into this first day ■of July, A. D. 1880, between Charles F. Conrad, Arnold Mclntire, and P. Parsons Chase, of Washtenaw county, and Myron E. David and Orrin J. David, of the county of Wayne, and all of the State of Michigan, parties of the first part, and a copartnership known as David W. Rust & Company, composed of David W. Rust, George Rust, John J. McTavish, of the county of Saginaw, and Myron E. David and Orrin J. David, •of the county of Wayne, and all of the state of Michigan, parties of the second part:
¶15Witnesseth, that whereas said parties of the second part are desirous -of exploring for iron ore on the north-east quarter of section three, and the south-east quarter of south-west quarter of section seven, and the north-east quarter of north-west quarter of section eighteen, in town forty-seven (47) north, of range twenty-eight (28) west:
¶16Now, therefore, said first parties, for and. in consideration of said explorations to be done by said second parties, hereby grant and give to .•said second parties the right of entering upon said lands and exploring for iron ore until the first day of January, 1881, if work exploring said lands shall be continued to that time; and if ore of quality and quantity is found on said lands sufficient for mining, then on or before the expiration of this agreement, at the request of said second parties, said first parties, their heirs or assigns, agree to execute a lease of said, lands ••to said second parties, their heirs and assigns, for mining purposes. Said lease, if given, shall be substantially as follows:
¶17First. Said lease shall be for twenty years from and after the first day ■of July 1880, and drawn so as to give David W. Rust two-fifths, (f) George Rust one-fifth, ($■) John J. McTavish one-fifth (■§■) and Myron E. David and Orrin' J. David one-tenth (¿¶) each interest in said lands.
¶18Second. Royalty to be paid by second parties to first parties shall be thirty-five cents (35c.) per ton (of 2240 pounds) for all hard ore mined and shipped, and twenty-five cents (25c.) per ton for all soft hematite ore mined and'shipped from said lands.
¶19Third. Second parties to pay all taxes upon said lands, both general ■and specific, during the life of this lease.
¶20Fourth. Railroad reports of the road over which ore shall be shipped •shall be prima facie evidence of the number of tons shipped by second parties.
¶21Fifth. Payments of royalty for ore so mined and shipped shall be due ■and payable on the first days of July and January in each year.
¶22*452SixtJi. Said royalty shall be paid within sixty days after it shall become-due and payable, and upon failure to pay said royalty or taxes in said time, said lease may be terminated by giving thirty days’ written notice-to the second parties. Second parties may terminate said lease at anytime by giving thirty days’ written notice to first parties of their intention-, to do so.
¶23Seventh. It is agreed that, upon the termination of this option, or of said lease, whether by the acts of the parties, or either of them, or by limitation, the parties of the second part, their heirs or assigns, shall have sixty days m which to remove all engines, tools, machinery, railroad tracks, buildings, and structures erected or placed by said parties on, said lands, but shall not remove or impair any pillar for ore support placed in the mines, or any timber or frame-work necessary to the use- and maintenance of shafts or other approaches to the mines, or any tramways within the mines, said mines to be kept and left in as good, condition as the circumstances will permit.
¶24Eighth. The parties of the second part covenant that during the period', for which said lease shall continue in force, after the first year, there-shall be mined and removed from said lands at least five thousand tons, of iron ore within one year from the first day of January, one thousand eight hundred and eighty-one, (1881,) from each eighty acres included in said lease, and crossing the iron belt from north to south, provided said amount can be mined and removed at a reasonable profit, and in case the said second parties shall not remove from said lands the quantity of iron ore per annum as herein stipulated, and subject to the conditions hereby-expressed, commencing with the time specified, the said parties of the-second part shall nevertheless pay to the parties of the first part a royalty of thirty-five cents (3oc.) per ton, upon five thousand tons per annum up-to and until this lease shall expire, which should have been mined from, each of said eighty acres as above set forth:
¶25Provided, however, that if in any one or more years more iron ore is. thus paid for than is actually mined and removed in such year or years, then and in such case the iron ore thus paid for and not removed may be-removed in the next subsequent year during the continuance of this lease-without other payments therefor, but such ore so permitted to be-removed in any subsequent year from each eighty acres in consideration, of such pre-payment must be in excess of the stipulated five thousand1 tons agreed to be anually taken from each eighty acres of land under-said leas®,
¶26*453Ninth. All buildings and machinery of second parties to be held "by first parties as security for any rents, royalties, or other indebtedness ■due said first parties by second parties, and said machinery may be used by first parties if so desired to keep the mine or mines free from water, -or worked until all.arrears are paid in full, and such buildings and machinery removed so as not to obstruct work or the replacing of others in their stead upon the termination of said lease, either by the acts of the parties or by limitation.
¶27Tenth. Said Conrad, one of the parties of the first part, shall have the Tight to furnish railroad carriage on all ore mined on condition that he «hall deliver the same to the ports of Lake Superior, or some port ¡accessible to Green Bay or Lake Michigan, at" as low rates as any other person or corporation.
¶28Eleventh. Said second parties to commence explorations at once and prosecute the same with reasonable vigor, and in a business-like manner, ¡and failure on their part so to do shall terminate this agreement.
¶29Tioelfth. Said second parties shall have the right, upon the first day of January, one thousand eight hundred and eighty-one; or at any previous time, to elect to take a lease of the whole of said land •as mentioned in this option, at the rates above mentioned and for the time mentioned herein, or they may take a lease for any one or more eighty acres of land mentioned above, for the time mentioned above, except said sections seven (7) and eighteen, (18,) it being hereby understood that, provided all said descriptions shall be surrendered by ■said second parties, except said sections seven (7) and eighteen, (18,) a royalty shall be paid on said sections seven and eighteen of forty cents per ton, instead of thirty-five cents, as above stated, and may surrender •any eighty acres of land which they may not desire to have included in said lease, and take a lease of the balance, or after the execution of said lease, second parties may surrender any portion of said land to first parties not less than eighty acres, upon paying in full all royalty and .taxes due upon the same, and giving thirty days’ notice to first parties of intention to so surrender.
¶30[Signed and sealed by the parties.]