528.—Bill in nature of a bill of review. A bill in equity, to obtain a re-examination and reversal of a decree, filed by one who was not aA per to the original suit, nor bound by the decree.—Bill in mature of a bill of revivor. Where, on the abatement of a suit, there is such a transmission of the interest of the incapacitated party that the title to it. as well as the person entitled, may be the subject of litigation in a court of chancery, the suit cannot be continued by a mere bill of revivor, but an original bill upon which the title rit be litigated must be filed. This is called a **bill in the nature of a bill of revivor.” It is founded on privity of estate or title by the act of the party. And the nature and operation of the whole act by which the privity is created is open to controversy. Story, Eq. Pl. $§ 378-380; 2 Amer. & Eng. Enc. Law. 211.—Bill in nature of a supplemental bill. A bill filed when new parties, with new interests, arising from events happening since the suit was commenced, are brought before the court; wherein it differs from a supplemental bill, which is properly applicable to those cases only where the same parties or the same interests remain before the court. Story, Eq. Pl. (5th Ed.) § 345 et seq.—Bill of conformity. One filed by an executor or administrator, who finds the affairs of the deceased so much involved that he cannot safely administer the estate except under the direction of a court of chancery. This bill is filed against the creditors, generally, for the purpose of having al! their claims adjusted, and procuring a final decree settling the order of payment of the assets. 1 Story, Eq. Jur. 440.—Bill of discovery. A bill in equity fil to obtain a discovery of facts resting in the knowledge of the defendant, or of deeds or writings. or other things in his custody or power.