Popplein v. Foley, 61 Md. 381; 6 Pomeroy's Equity Jurisprudence, 757. But the contract sought to be enforced must be certain or definite in all of its provisions, and fair and mutual in its terms, and must be so clearly proven as to satisfy the court that it constitutes the actual agreement between the parties. If any of these ingredients are wanting, specific performance will not be decreed. It is enough to doubt on any of these points to refuse relief. Mundorff v. Kilbourn, 4 Md. 464; Horner v. Woodland, 88 Md. 511; Lanahan v. Cockey, 108 Md. 620; 6 Pomeroy's Equity Jurisprudence, 764. The only question important to decide in this case is whether, at a meeting on October 29th, 1923, at which were present the plaintiff and defendants, their respective attorneys and auditors, an oral agreement was reached in which all differences between the parties were reconciled, and it was found that defendants were indebted to the plaintiff in the sum of $95,013.79, or rather the principle of settlement agreed upon, and all items entering therein, so that the amount was merely a matter of mathematical calculation, from which the above figures resulted.