VI. TRIALS

Rule 38. Jury Trial of Right.

(a) RIGHT PRESERVED. The right of trial by jury as declared by the Seventh Amendment to the Constitution or as given by a statute of the United States shall be preserved to the parties inviolate.

(b) DEMAND. Any party may demand a trial by jury of any issue triable of right by a jury by serving upon the other parties a demand therefor in writing at any time after the commencement of the action and not later than 10 days after the service of the last pleading directed to such issue. Such demand may be indorsed upon a pleading of the party.

(c) SAME: SPECIFICATION OF ISSUES. In his demand a party may specify the issues which he wishes so tried; otherwise he shall be deemed to have demanded trial by jury for all the issues so triable. If he has demanded trial by jury for only some of the issues, any other party within 10 days after service of the demand or such lesser time as the court may order, may serve a demand for trial by jury of any cther or all of the issues of fact in the action.

(d) WAIVER. The failure of a party to serve a demand as required by this rule and to file it as required by Rule 5 (d) constitutes a waiver by him of trial by jury. A demand for trial by jury made as herein provided may not be withdrawn without the consent of the parties.

Rule 39. Trial by Jury or by the Court.

(a) BY JURY. When trial by jury has been demanded as provided in Rule 38, the action shall be designated upon the docket as a jury action. The

trial of all issues so demanded shall be by jury, unless (1) the parties or their attorneys of record, by written stipulation filed with the court or by an oral stipulation made in open court and entered in the record, consent to trial by the court sitting without a jury or (2) the court upon motion or of its own initiative. finds that a right of trial by jury of some or all of those issues does not exist under the Constitution or statutes of the United States.

(b) BY THE COURT. Issues not demanded for trial by jury as provided in Rule 38 shall be tried by the court; but, notwithstanding the failure of a party to demand a jury in an action in which such a demand might have been made of right, the court in its discretion upon motion may order a trial by a jury of any or all issues.

(c) ADVISORY JURY AND TRIAL BY CONSENT. In all actions not triable of right by a jury the court upon motion or of its own initiative may try any issue with an advisory jury or, except in actions against the United States when a statute of the United States provides for trial without a jury, the court, with the consent of both parties, may order a trial with a jury whose verdict has the same effect as if trial by jury had been a matter of right.

Rule 40. Assignment of Cases for Trial. The district courts shall provide by rule for the placing of actions upon the trial calendar (1) without request of the parties or (2) upon request of a party and notice to the other parties or (3) in such other manner as the courts deem expedient. Precedence shall be given to actions entitled thereto by any statute of the United States.

Rule 41. Dismissal of Actions.
(a) VOLUNTARY DISMISSAL: EFFECT THEREOF.

(1) By Plaintiff; By Stipulation. Subject to the provisions of Rule 23 (c) and of any statute of the United States, an action may be dismissed by the plaintiff without order of court (i) by filing a notice of dismissal at any time before service of the answer or (ii) by filing a stipulation of dismissal signed by all the parties who have appeared generally in the action. Unless otherwise stated in the notice of dismissal or stipulation, the dismissal is without prejudice, except that a notice of dismissal operates as an adjudication upon the merits when filed by a plaintiff who has once dismissed in any court of the United States or of any state an action based on or including the same claim.

(2) By Order of Court. Except as provided in paragraph (1) of this subdivision of this rule, an action shall not be dismissed at the plaintiff's instance save upon order of the court and upon such terms and conditions as the court deems proper. If a counterclaim has been pleaded by a defendant prior to the service upon him of the plaintiff's motion to dismiss, the action shall not be dismissed against the defendant's objection unless the counterclaim can remain pending for independent adjudication by the court. Unless otherwise specified in the order, a dismissal under this paragraph is without prejudice.

(b) INVOLUNTARY DISMISSAL: EFFECT THEREOF. For failure of the plaintiff to prosecute or to comply with these rules or any order of court, a defendant may move for dismissal of an action or of any claim against him. After the plaintiff has completed the presentation of his evidence, the defendant, without

waiving his right to offer evidence in the event the motion is not granted, may move for a dismissal on the ground that upon the facts and the law the plaintiff has shown no right to relief. Unless the court in its order for dismissal otherwise specifies, a dismissal under this subdivision and any dismissal not provided for in this rule, other than a dismissal for lack of jurisdiction or for improper venue, operates as an adjudication upon the merits.

(c) DISMISSAL OF COUNTERCLAIM, CROSS-CLAIM, OR THIRD-PARTY CLAIM. The provisions of this rule apply to the dismissal of any counterclaim, crossclaim, or third-party claim. A voluntary dismissal by the claimant alone pursuant to paragraph (1) of subdivision (a) of this rule shall be made before a responsive pleading is served or, if there is none, before the introduction of evidence at the trial or hearing.

(d) COSTS OF PREVIOUSLY-DISMISSED ACTION. If a plaintiff who has once dismissed an action in any court commences an action based upon or including the same claim against the same defendant, the court may make such order for the payment of costs of the action previously dismissed as it may deem proper and may stay the proceedings in the action until the plaintiff has complied with the order.

Rule 42. Consolidation; Separate Trials.

(a) CONSOLIDATION. When actions involving a common question of law or fact are pending before the court, it may order a joint hearing or trial of any or all the matters in issue in the actions; it may order all the actions consolidated; and it may make such orders concerning proceedings therein as may tend to avoid unnecessary costs or delay.

(b) SEPARATE TRIALS. The court in furtherance of convenience or to avoid prejudice may order a

separate trial of any claim, cross-claim, counterclaim, or third-party claim, or of any separate issue or of any number of claims, cross-claims, counterclaims, third-party claims, or issues.

Rule 43. Evidence.

(a) FORM AND ADMISSIBILITY. In all trials the testimony of witnesses shall be taken orally in open court, unless otherwise provided by these rules. All evidence shall be admitted which is admissible under the statutes of the United States, or under the rules of evidence heretofore applied in the courts of the United States on the hearing of suits in equity, or under the rules of evidence applied in the courts of general jurisdiction of the state in which the United States court is held. In any case, the statute or rule which favors the reception of the evidence governs and the evidence shall be presented according to the most convenient method prescribed in any of the statutes or rules to which reference is herein made. The competency of a witness to testify shall be determined in like manner.

(b) SCOPE OF EXAMINATION AND CROSS-EXAMINATION. A party may interrogate any unwilling or hostile witness by leading questions. A party may call an adverse party or an officer, director, or managing agent of a public or private corporation or of a partnership or association which is an adverse party, and interrogate him by leading questions and contradict and impeach him in all respects as if he had been called by the adverse party, and the witness thus called may be contradicted and impeached by or on behalf of the adverse party also, and may be crossexamined by the adverse party only upon the subject matter of his examination in chief.

(c) RECORD OF EXCLUDED EVIDENCE. In an action tried by a jury, if an objection to a question