The main objection to the judgment, as urged, is that it is not supported by the evidence. There was explicit testimony which, if the referee believed it, required him to find for the plaintiffs. In support of this were facts and inferences which corroborated that testimony. Against it was other testimony, directly and inferentially contradictory. A review of the case does not produce a result different from that reached by the referee. 'There was a class of exceptions which was not valid, because the rulings to which they were made were that witness cannot testify to matters of opinion •or inference or law; such as, what was the agreement or understanding, instead of, what was said and done between the parties, or the purpose for which the check was given, instead of the particulars of the transaction. Another •class of exceptions comprise cases where the referee allowed questions to be put to one of the defendants as a witness, calling for the fact of his paying ■other claims like the one in. action. These questions were put on the cross-
