Section 45 Restriction of bills of exceptions.
A bill of exceptions shall not be allowed in any cause before the Court of Session, upon the ground of the undue admission of evidence, if in the opinion of the court the exclusion of such evidence could not have led to a different verdict than that actually pronounced; and it shall not be imperative on the court to sustain a bill of exceptions, on the ground of the undue rejection of documentary evidence, when it shall appear from the documents themselves that they ought not to have affected the result at which the jury by their verdict have arrived.