JAMES M. CARTER, District Judge.
This case arises under the diversity jurisdiction of the district court, and presents various problems in the law of negligence, including particularly the effect of the return of separate verdicts against certain defendants and alleged apportionment of a verdict between such defendants.
Appellees George F. Gossnell and Estella Gossnell, husband and wife, and hereinafter called the Gossnells, were travelling by automobile on the highway near Tempe, Arizona, on February 20, 1953. A truck operated by appellant Carroll, and belonging to appellants, P. W. Siebrand and Hiko Siebrand, hereafter called Seibrand Bros., was travel-ling in an opposite direction. As the parties approached each other, a trailer being pulled by the truck became disconnected, crossed the highway, and ran head-on into the Gossnell car, causing damage thereto and personal injuries to the Gossnells.
The Gossnells, citizens of Iowa, brought action in the district court against Seibrand Bros, and Carroll, citizens of Arizona, Seibrand Bros., and Carroll filed separate answers and were represented by different counsel. The case was tried to a jury. Separate verdicts were asked for by Siebrand [86] Bros., and without objection were given to the jury. The jury returned a verdict against Carroll for $100 and against Siebrand Bros, for $95,000. The verdicts were entered without objection.
Thereafter, Siebrand Bros, moved for a new trial and moved “to strike from the verdict” against them, all sums in excess of $100, Carroll claimed tender of the $100 to Gossnells and their refusal to accept it and tender to the clerk, and moved that the judgment against him be satisfied. The trial court denied all three motions. Within time this appeal was taken by appellants on a joint record. Separate briefs were filed.
The Carroll Appeal.
Carroll appealed only from the order denying his motion to satisfy the judgment for $100 against him. He did not appeal from the judgment entered on the verdict. Sec. 1291, U.S.C.A., Title 28 provides this court “shall have jurisdiction of appeals from all final decisions of the district courts of the United States * * * The 7th Circuit, in Hatzenbuhler v. Talbot, 7 Cir., 1942, 132 F.2d 192, has held that an order denying a motion to satisfy a judgment is not a final decision of the district court and not appealable. Lillie v. Dennert, 6 Cir., 1916, 232 F. 104, held that such an order was appealable. In Hatzenbuhler the judgment was not appealed from and apparently had become final before the motion to satisfy was made. In Lillie it is clear that the judgment had become final before the motion to satisfy. In our case the judgment of the district court was not final and was in fact appealable when the order in question was made. Our case differs therefore from each of the above cases. Clearly, here the order on the motion was not a final order. Further motions might have been made, acted on and still the entire record would have come up on appeal. The statute, § 1291, U.S.C.A., Title 28, is based on the logic that there should not be piecemeal appeals and that on an appeal from a final judgment, the earlier rulings, though not appealable in themselves, may be reviewed. The order in question is not a final order and the Carroll appeal is dismissed.
The Siebrand Bros. Appeal.
Siebrand Bros, present nine contentions by their appeal, viz.:
1. The doctrine of res ipsa loquitur does not apply;
2. The master-servant relationship, between Siebrands and Carroll was not proved;
3. The amount recovered as actual or compensatory damages against a servant is the limit of recovery against the master where the liability of the master is derivative;
4. The amount of damages to be assessed against two joint tortfeasors cannot be apportioned, but must be in the same amounts for all such tort-feasors ;
5. The verdict was excessive;
6. The admission of incompetent and immaterial evidence constituted reversible error;
7. A statement by a member of the partnership, not acting for the firm on the occasion in question, is not admissible to bind the partnership or other partners;
8. The-sharing of losses as well as profits is necessary to constitute a joint venture;
9. The Carroll judgment was or should have been satisfied and therefore the Siebrand judgment was satisfied.
1.
Res Ipsa Loquitur.
Seibrand Bros, contend that the doctrine of res ipsa loquitur was improperly applied in this case and rely on Stewart v. Crystal Coca-Cola Bottling Co., 1937, 50 Ariz. 60, 68 P.2d 952 and Sawyer v. People’s Freight Lines Inc., 1933, 42 Ariz. 145, 22 P.2d 1080. Neither are controlling. The first concerned a breaking bottle, previously placed by plaintiff in an ice box; and the second concerned a collision between a horse upon which plaintiff was riding and a truck of the [87] defendant. Both rest on the principle that the doctrine does not apply when the accident could have happened from various causes, some of which were unrelated to defendant’s conduct.1
Here the cause of the accident was clear. The trailer became disconnected and crossed into the path of Gossnells’ car. The causation was clear and a duty rested on defendants to explain the happening.
The rule of res ipsa loquitur is one of general application. This Circuit, in United States v. Johnson, 1950, 181 F.2d 577, 582, quoted the standards for application of the rule as set out by Wigmore.
“ * * * ‘ (1) The apparatus must be such that in the ordinary instance no injurious operation is to be expected unless from a careless construction, inspection, or user; (2) Both inspection and user must have been at the time of the injury in the control of the party charged; (3) The injurious occurrence or condition must have happened irrespective of any voluntary action at the time by the party injured. It may be added that the particular force and justice of the rule, regarded as a presumption throwing upon the party charged the duty of producing evidence, consists in the circumstance that the chief evidence of the true cause, whether culpable or innocent, is practically accessible to him but inaccessible to the injured person.’ (Wigmore on Evidence, Third Ed., Sec. 2509.) * *
United States v. Hull, 1 Cir., 1952, 195 F.2d 64, at page 66, states:
“ * * * The use of the Latin phrase ‘res ipsa loquitur’ in this connection may be unfortunate, as suggesting that some exotic doctrine is involved. It is nothing more than a case of circumstantial evidence, where plaintiff has proved enough ‘to get to the jury’, and where the inference of negligence, though not necessarily a required one, is a permissible one on the balance of probabilities. See Prosser on Torts § 43 (1941); Sweeney v. Erving, 1913, 228 U.S. 233, 238-240, 33 S.Ct. 416, 57 L.Ed. 815. * * * ”
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JAMES M. CARTER, District Judge.
This case arises under the diversity jurisdiction of the district court, and presents various problems in the law of negligence, including particularly the effect of the return of separate verdicts against certain defendants and alleged apportionment of a verdict between such defendants.
Appellees George F. Gossnell and Estella Gossnell, husband and wife, and hereinafter called the Gossnells, were travelling by automobile on the highway near Tempe, Arizona, on February 20, 1953. A truck operated by appellant Carroll, and belonging to appellants, P. W. Siebrand and Hiko Siebrand, hereafter called Seibrand Bros., was travel-ling in an opposite direction. As the parties approached each other, a trailer being pulled by the truck became disconnected, crossed the highway, and ran head-on into the Gossnell car, causing damage thereto and personal injuries to the Gossnells.
The Gossnells, citizens of Iowa, brought action in the district court against Seibrand Bros, and Carroll, citizens of Arizona, Seibrand Bros., and Carroll filed separate answers and were represented by different counsel. The case was tried to a jury. Separate verdicts were asked for by Siebrand [86] Bros., and without objection were given to the jury. The jury returned a verdict against Carroll for $100 and against Siebrand Bros, for $95,000. The verdicts were entered without objection.
Thereafter, Siebrand Bros, moved for a new trial and moved “to strike from the verdict” against them, all sums in excess of $100, Carroll claimed tender of the $100 to Gossnells and their refusal to accept it and tender to the clerk, and moved that the judgment against him be satisfied. The trial court denied all three motions. Within time this appeal was taken by appellants on a joint record. Separate briefs were filed.
The Carroll Appeal.
Carroll appealed only from the order denying his motion to satisfy the judgment for $100 against him. He did not appeal from the judgment entered on the verdict. Sec. 1291, U.S.C.A., Title 28 provides this court “shall have jurisdiction of appeals from all final decisions of the district courts of the United States * * * The 7th Circuit, in Hatzenbuhler v. Talbot, 7 Cir., 1942, 132 F.2d 192, has held that an order denying a motion to satisfy a judgment is not a final decision of the district court and not appealable. Lillie v. Dennert, 6 Cir., 1916, 232 F. 104, held that such an order was appealable. In Hatzenbuhler the judgment was not appealed from and apparently had become final before the motion to satisfy was made. In Lillie it is clear that the judgment had become final before the motion to satisfy. In our case the judgment of the district court was not final and was in fact appealable when the order in question was made. Our case differs therefore from each of the above cases. Clearly, here the order on the motion was not a final order. Further motions might have been made, acted on and still the entire record would have come up on appeal. The statute, § 1291, U.S.C.A., Title 28, is based on the logic that there should not be piecemeal appeals and that on an appeal from a final judgment, the earlier rulings, though not appealable in themselves, may be reviewed. The order in question is not a final order and the Carroll appeal is dismissed.
The Siebrand Bros. Appeal.
Siebrand Bros, present nine contentions by their appeal, viz.:
1. The doctrine of res ipsa loquitur does not apply;
2. The master-servant relationship, between Siebrands and Carroll was not proved;
3. The amount recovered as actual or compensatory damages against a servant is the limit of recovery against the master where the liability of the master is derivative;
4. The amount of damages to be assessed against two joint tortfeasors cannot be apportioned, but must be in the same amounts for all such tort-feasors ;
5. The verdict was excessive;
6. The admission of incompetent and immaterial evidence constituted reversible error;
7. A statement by a member of the partnership, not acting for the firm on the occasion in question, is not admissible to bind the partnership or other partners;
8. The-sharing of losses as well as profits is necessary to constitute a joint venture;
9. The Carroll judgment was or should have been satisfied and therefore the Siebrand judgment was satisfied.
1.
Res Ipsa Loquitur.
Seibrand Bros, contend that the doctrine of res ipsa loquitur was improperly applied in this case and rely on Stewart v. Crystal Coca-Cola Bottling Co., 1937, 50 Ariz. 60, 68 P.2d 952 and Sawyer v. People’s Freight Lines Inc., 1933, 42 Ariz. 145, 22 P.2d 1080. Neither are controlling. The first concerned a breaking bottle, previously placed by plaintiff in an ice box; and the second concerned a collision between a horse upon which plaintiff was riding and a truck of the [87] defendant. Both rest on the principle that the doctrine does not apply when the accident could have happened from various causes, some of which were unrelated to defendant’s conduct.1
Here the cause of the accident was clear. The trailer became disconnected and crossed into the path of Gossnells’ car. The causation was clear and a duty rested on defendants to explain the happening.
The rule of res ipsa loquitur is one of general application. This Circuit, in United States v. Johnson, 1950, 181 F.2d 577, 582, quoted the standards for application of the rule as set out by Wigmore.
“ * * * ‘ (1) The apparatus must be such that in the ordinary instance no injurious operation is to be expected unless from a careless construction, inspection, or user; (2) Both inspection and user must have been at the time of the injury in the control of the party charged; (3) The injurious occurrence or condition must have happened irrespective of any voluntary action at the time by the party injured. It may be added that the particular force and justice of the rule, regarded as a presumption throwing upon the party charged the duty of producing evidence, consists in the circumstance that the chief evidence of the true cause, whether culpable or innocent, is practically accessible to him but inaccessible to the injured person.’ (Wigmore on Evidence, Third Ed., Sec. 2509.) * *
United States v. Hull, 1 Cir., 1952, 195 F.2d 64, at page 66, states:
“ * * * The use of the Latin phrase ‘res ipsa loquitur’ in this connection may be unfortunate, as suggesting that some exotic doctrine is involved. It is nothing more than a case of circumstantial evidence, where plaintiff has proved enough ‘to get to the jury’, and where the inference of negligence, though not necessarily a required one, is a permissible one on the balance of probabilities. See Prosser on Torts § 43 (1941); Sweeney v. Erving, 1913, 228 U.S. 233, 238-240, 33 S.Ct. 416, 57 L.Ed. 815. * * * ”
Stewart v. Crystal Coca-Cola Bottling Co., supra [50 Ariz. 60, 68 P.2d 954], shows Arizona’s view of the elements of res ipsa loquitur. “This rule is merely one of evidence and is applicable only when the instrumentality causing the injury is under the control of the defendant and the accident is of such a character that in the ordinary course of events would not happen if those having control of it used due care. * * ” The plaintiff is not “excused from proving negligence * * * the purpose of the rule * * * is to aid the plaintiff in a proper case in making this showing by supplying a sufficient proof of negligence to require a defendant claiming that the accident did not occur through any fault of his to produce evidence to show this * * * ”. 68 P.2d at page 954. “It is only where the existence of negligence is a more reasonable deduction from the facts shown that a plaintiff is permitted to call this rule to his aid.” 68 P.2d at page 956.
These statements square with Wigmore, and the quote for United States v. Hull, supra, and indicate that Arizona follows the general principles used by other jurisdictions in the application of the doctrine. We conclude that this case was a routine one for the application of res ipsa loquitur, and we find no error in this respect.
[88]*882, 3, 4.
Master and Servant; Joint Tortfeasors; Apportionment of Damages.
Probably the most important and troublesome problem in the case arises from the verdicts returned by the jury. The trial court submitted to the jury two pairs of verdicts, in the first pair, one for plaintiffs against Siebrand Bros., in a blank amount, and one for Seibrand Bros., against plaintiffs; and in the second pair, one for plaintiffs against Carroll in a blank amount, and one for Carroll against plaintiffs. It was conceded on argument before this court that Siebrand Bros., requested the separate verdicts. In the instructions to the jury, the court called attention to the two sets of verdicts, one as to Siebrand Bros., and one as to Carroll. Neither side objected, as required by Rule 51, Fed.Rules Civ.Proc. 28 U.S.C.A., to the instruction concerning verdicts. The jury returned one verdict for plaintiffs against Siebrand Bros. for. $95,000 and one against Carroll for $100. The verdicts were received, recorded and the jury discharged. Objection was first raised by motion thereafter in the trial court.
Siebrand Bros, now make two general contentions:
(1) Assuming arguendo, that Carroll was Seibrand Bros.’ servant, that Sie-brand Bros.’ liability is the. derivative liability of a .master for the acts of' a servant and the amount recovered as actual or compensatory damage against-the servant is the limit of the amount which can be recovered against the master, Siebrand Bros. They would thereby limit their liability to $100.
.. (2) That Siebrand Bros, and Carroll, are in any event joint tortfeasors and-that the amount of damages to be assessed against joint tortfeasors cannot be apportioned but must be assessed in like amounts.
Gossnells concede the rule as to the limitations on the master’s derivative liability,, but contend the master was here guilty of independent negligence in maintaining the equipment, pointing to the evidence hereafter discussed, and to the complaint which alleged,
“On February 20th, 1953, while plaintiffs were proceeding in their automobile in a northerly direction on the Tempe Bridge, just north of the business district of Tempe, Arizona, defendants so negligently, carelessly and wantonly maintained, and operated their motor vehicle and a heavily loaded trailer attached thereto as to cause said trailer to become disconnected and to run into the automobile of plaintiffs with great force and violence.” [Emphasis supplied.]
Gossnells contend that two delicts or wrongs are thus alleged and that the verdict against Carroll can be sustained under the allegation of negligent operation and the verdict against Siebrand Bros., under the allegation of negligent maintenance.
Gossnells contend that the defendants are not joint tortfeasors under Arizona law, and their liability is several and therefore the verdicts are proper.
This Court is “required to seek the support of the judgment appealed from upon any ground disclosed in the record. Le Tulle v. Scofield, 308 U.S. 415-421, 60 S.Ct. 313, 84 L.Ed. 355 and cases cited.” Town of South Tucson v. Tucson Gas Electric Light & Power Co., 9 Cir., 1945, 149 F.2d 847, 848. We must take “that view of the evidence which is most favorable to the prevailing party, accepting as established all facts which the evidence reasonably tended to prove and giving to the prevailing party the benefit of all inferences which may be reasonably drawn from the evidence. Oxnard Canners, Inc., v. Bradley, 9 Cir., 194 F.2d 655; Ross v. British Yukon Nav. Co., 9 Cir., 188 F.2d 779.” Bank of America National Trust and Savings Ass’n v. Hayden, 9 Cir., 1956, 231 F.2d 595, 603. In the case at bar there were alternate theories of liability as to Carroll and the Siebrand Bros. .This is- no different than a cáse where- there were [89] alternate theories of damages. In Bank of America National Trust and Savings Ass’n v. Hayden, supra, the'court said at page 602, “Consequently the verdict is to be construed as responsive to any and all material issues in the case, including the alternate theories of damages.” citing cases. See International Longshoremen’s & Warehousemen’s Union C. I. O. v. Hawaiian Pineapple Co., 9 Cir., 1955, 226 F.2d 875, where on trial before a jury, the verdict was rendered against the International and Local Union but in favor of the individual defendants and against the plaintiff. The court said, page 882:
“ * * * The presumption is that [the jury] * * * did its duty. And especially is this true where there were combinations of permissible findings that were not inconsistent. But if plain inconsistent, that was the jury’s prerogative here. See Dunn v. United States, 284 U.S. 390, 52 S.Ct. 189, 76 L.Ed. 356, 80 A.L.R. 161; Jayne v. Mason & Dixon Lines, 2 Cir., 124 F.2d 317. If the master and servant cases cited by International and Local were applicable, the short answer would be: Possible combinations of facts existed which would make the verdicts consistent within themselves. * * * "
(1) The Master’s Derivative Liability.
35 Am.Jur.Supp. § 591, p. 72, states: “The rule is established in most jurisdictions in which the question has arisen that the amount recovered as actual or compensatory damages in a tort action against a servant who was the active tortfeasor, is the limit of the amount recoverable as damages against the master whose responsibility is solely derivative * * This is the general rule,2 and in this diversity case we find Arizona law to be in accord. DeGraff v. Smith, 62 Ariz. 261, 157 P.2d 342. If this was all there was to this case, it would be a “short horse, soon curried.”
(2) Independent Liability of Master.
But in DeGraff v. Smith, supra, the court, after quoting from Inter State Motor Freight System v. Henry, 111 Ind. App. 179, 38 N.E.2d 909, 912, as follows:
“ ‘Nor does the verdict in favor of a joined servant bar a recovery against the master where the latter has himself been guilty of acts on which independently of the acts of the servant, liability may be predicated’ ”, concluded,
“There is no evidence in the case that the defendant DeGraff was guilty of an act of negligence on which, independently of the acts of the servant, liability may be predicated.” 157 P.2d at page 344.
If under the facts of our case, there is independent negligence on the part of the master, Siebrand Bros., then under Arizona law, there may be liability of the master, apart from his derivative liability for the servant’s wrongful acts.
We test Gossnells’ claim of two wrongs by the evidence in the case, viewed in the light most favorable to them as prevailing parties.
(3) The Operation of the Vehicle.
Carroll was the driver of the truck, pulling the trailer, at the time of the accident. There was available to the plaintiffs the application of the rule of res ipsa loquitur. There was clear support in the record for the jury’s verdict against Carroll for negligent operation of the vehicles.
(4) Maintenance of the Equipment.
It is only when the master is himself free of negligence and his liability is solely derivative from the negligence of the servant, that the amount recovered from the servant is the limit of the recovery against the master, (supra). Here, in addition to evidence to support a finding that Carroll was an agent of Siebrand Bros., there was also evidence [90] of their own- negligence in maintaining the equipment.
Carroll was driving Siebrand Bros.’ pick-up. Proof of ownership of the car was prima facie evidence that the driver Carroll, was the servant or agent of Siebrand Bros., and using the vehicle in the business of the owner. A rebut-table presumption arose from such proof. The burden was on Siebrand Bros, to overcome this prima facie showing. Baker v. Maseeh, 1919, 20 Ariz. 201, 179 P. 53; Hatchimonji v. Homes, 1931, 38 Ariz. 535, 3 P.2d 271; See, Lutfy v. Lockhart, 37 Ariz. 488, 295 P. 975; Peters v. Pima Mercantile Co., 1933, 42 Ariz. 454, 27 P.2d 143.3
There were conflicts in the evidence and the jury was instructed that if a witness testified falsely as to any material matter, they might reject his entire testimony, and that they were the sole judges of the credibility of the witness.
Mrs. Gossnell testified that defendant, P. W. Siebrand, introduced Carroll as “the man who was driving the truck for us.” All defendants denied Carroll was employed by Siebrand Bros., but said he was only a concessionnaire. The jury obviously disbelieved the defendants. Plaintiffs’ prima facie showing was not overcome.
Siebrand Bros, operated a circus and owned the truck involved in the accident. They testified that Bill Siebrand, a nephew and the owner of the trailer, was an independent concessionnaire and had no other connection with the circus. They admitted that they owned “riders” and other equipment connected with the circus. Bill Siebrand also testified he and Carroll were concessionnaires and were going to operate a bird show. He testified he owned the trailer and saw it the night before the accident and that it contained only bird cages and a mirror; that he asked Carroll to move the trailer on the day in question 'to Mesa and that on arrival the trailer contained the same material. Bill Siebrand admitted he had been working for his uncle up to the day before the accident.
Carroll testified Bill Siebrand asked him to drive Bill Siebrand’s truck and trailer to Mesa on the day in question but that he became confused and took Siebrand Bros, red truck instead of Bill Siebrand’s red truck; and that the trailer contained bird cages and no “rides" whatever. However, Boyd, a policeman who was immediately following Siebrand Bros.’ pick-up and the trailer at the time of the accident, looked inside the trailer and there observed carnival or circus “rides.” All defendants and Bill Sie-brand denied this. The jury could have and apparently did believe Boyd and disbelieved the defendants and Bill Sie-brand. Thus the jury could infer that Bill Siebrand’s trailer was hauling circus rides for Siebrand Bros. Nor was the jury required to believe Carroll or Bill Sie-brand to the effect that the Siebrand Bros.’ truck was used by mistake nor to believe that Carroll was not an employee of Siebrand Bros. Although the defendants Siebrand and Bill Siebrand denied the existence of a joint venture, they were obviously not believed by the jury. In any event, the jury were instructed on the theory of joint venture and by their verdict found that Bill Sie-brand was part of a joint venture with the Siebrand Bros., his uncles. The finding of a joint venture places both the pick-up and the trailer under the control and management of Siebrand Bros. They had a duty to maintain it with due care.
There was sufficient evidence from which the jury could have concluded that the pick-up and trailer, and particularly the hitch used to join them, were not maintained with due care at the time of the accident. A hitch similar to that claimed to have been'on the trailer was in evidence before the'jury and was viewed [91] by this court. It had various movable parts.
Boyd, who examined the hitch immediately after the accident, testified the lock for the ball hitch was missing but that nothing was broken. The record is not clear, but various aspects of the hitch were pointed out to the jury and Boyd insisted a part was missing. A search by Boyd and Carroll resulted in finding nothing that had dropped off along the highway. Although Carroll claimed the hitch was complete and hooked properly when he connected the trailer to the truck, for the reasons above, the jury did not have to believe him.
On these facts there was ample basis for the jury to conclude that a part was missing from the hitch. The jury could have concluded that the Siebrand Bros, permitted the equipment to be operated on the highway and did not properly maintain the equipment at the time of the happening of the accident, in assessing damages on this tort at $95,000.
Thus the jury was justified in fixing the damages for the tort of negligent operation at $100 and the damages for the separate tort of negligent maintenance at $95,000.
(5) Siebrand Bros, and Carroll Were Not Joint Tortfeasors Under Arizona Law.
Siebrand Bros, contend that in any event they and Carroll were joint tort-feasors, and that damages may not be apportioned, but must be in the same amount against all joint tortfeasors.
Professor Prosser, in The Law of Torts [1941] clarifies our problem and sets forth three situations to which the terms “joint tort” or “joint tortfeasor” have been applied.
(1) Concert of action — Vicarious liability.
“The orginal meaning of ‘joint tort’ was that of vicarious liability for concerted action. All persons who acted in concert to commit a trespass, in pursuance of a common design, were held liable for the entire result * * * all might be joined as defendants in the same action at law and since each was liable for all, the jury would not be permitted to apportion the damages.” (page 1094).
(2) Joinder of causes of action.
“A second meaning of a ‘joint tort’ is that two or more persons may be joined as defendants in the same action at law.” (page 1096).
(3) Concurrent or successive wrongdoers.
“Quite apart from any question of vicarious liability or joinder of defendant, the common law developed a separate principle, that a tortfeasor might be liable for the entire loss sustained by the plaintiff, even though his act concurred or combined with that of another wrongdoer to produce the result.” * * (page 1102).
“In England such concurrent but independent wrongdoers have not been confused with joint tortfeasors because there could be no joinder in the absence of concerted action. They must be sued separately and although each may be liable for the entire loss, the juries are under no compulsion to return verdicts for the same amount. Under the more liberal American rules as to joinder, defendants whose negligence has concurred to produce a single result have been joined in one action, and by careless usage have been called joint tortfeasors.” (pages 1102-3)4
But in this diversity case we look particularly to Arizona law. “ * * for purposes of diversity jurisdiction a federal court is, ‘in effect, only another court of the State * * *.’ ” Guaranty Trust Co. of New York v. York, 1945, 326 U.S. 99, 108, 65 S.Ct. 1464, 89 L.Ed. 2079; Woods v. Interstate Realty Co., 1949, 337 U.S. 535, 538, 69 S.Ct. 1235, 1237, 93 L.Ed. 1524.
[92] Arizona has laid down its own rule as to what constitutes joint tortfeasors. White v. Arizona Eastern R. Co., 1924, 26 Ariz. 590, 229 P. 101, follows the original meaning of “joint tort” and requires concert of action in its historical sense. It is not sufficient to constitute a joint tort or joint tortfeasors, that two concurrent causes or that a concurrent cause and a concurrent condition be operative, Salt River Valley Water Users’ Ass’n v. Cornum, 1937, 49 Ariz. 1, 63 P.2d 639. “ ‘ “There must be concurrent action, a co-operation or concert in the accomplishment by the wrongdoers of the particular wrong in order to make them jointly liable. If each person acts independently of the other the fact that they acted simultaneously is not sufficient to establish joint liability.”' ” 63 P.2d at page 643.5
Under the facts of our case there was not the necessary concert of action between the negligence in maintenance attributable to Siebrand Bros, and the negligence in operation attributable to Carroll to constitute them joint tortfeasors under Arizona law.