1. The first and second exceptions may be disposed of together. The notes given by the plaintiff to the defendants upon the adjustment of the accounts between them in May, 1886, were secured by pledge of the money which the plaintiff sought to recover in this action, and were admissible in evidence for the defence, upon the issue whether, if they took that money, they were entitled to retain it as collateral security for the notes. The record of the former suit, in which the notes had been pleaded in set-off against the plaintiff, showed that the suit was still pending; as it had not gone to judgment, the
2. The next class of exceptions is to the admission of evidence that during the period covered by the transactions upon which the plaintiff’s suit is founded, he committed other frauds upon the defendants in other transactions in which they lent him money. This evidence was introduced in support of the defendants’ contentions that they took no money from the safety vaults, and that they found in the vaults nothing but worthless bundles secretly substituted by the plaintiff for the money which he had himself fraudulently removed.
Acts which are part of one general scheme or plan of fraud, designed and put in execution by the same person, are admissible to prove that an act which has been done by some one was in fact done by the person who designed and pursued the plan, if the act in question is a necessary part of the plan. Commonwealth v. Robinson,
3. The remaining exception is to the exclusion of evidence that the plaintiff had been acquitted in a criminal prosecution for one of the frauds, evidence of which was admitted against him. But that acquittal was res inter alios, like the withdrawal of suits by other parties in Haskins v. Warren,
