40. Previous judgments relevant to bar a second suit or trial
41. Relevancy of certain judgments in probate, etc., jurisdiction
42. Relevancy and effect of judgments, orders or decrees, other than those mentioned in section 41
43. Judgments, etc., other than those mentioned in sections 40 to 42, when relevant
44. Fraud or collusion in obtaining judgment, or in-competency of Court, may be proved