CARMAN, Judge:

Defendant-appellant The Celotex Corporation (Celotex or appellant) appeals from a judgment entered in the Southern District of New York after a jury trial before Charles P. Sifton, J., regarding Joint Eastern and Southern Districts Asbestos Litigation, awarding compensatory and punitive damages and damages for loss of consortium in an asbestos products liability personal injury case. Celotex appeals from orders denying its motion for judgment notwithstanding the verdict, or in the alternative, a new trial and for a mistrial. Defendant-appellant, Owens-Illinois, Inc. (Owens-Illinois or appellant) appeals from the same judgment and orders denying its motion for judgment notwithstanding the verdict and its motion for a new trial or, in the alternative, for a remittitur.

Appellants request us to reverse the judgment below or, in the alternative, vacate the judgment and remand for a new trial. In the alternative, appellants ask us to vacate the punitive damages award and remand for a new trial on the issue of punitive damages.

BACKGROUND

This appeal is one of many which arises from thousands of cases filed against manufacturers and producers of asbestos, resulting in unparalleled litigation in American tort law. See Racich v. Celotex Corp., 887 F.2d 393, 394 (2d Cir. 1989); In re School Asbestos Litigation, 789 F.2d 996, 1000 (3d Cir.), cert. denied, 479 U.S. 852, 107 S.Ct. 182, 93 L.Ed.2d 117 (1986). The cases have been filed pursuant to New York's one-year revival statute for certain toxic torts, including alleged asbestos related torts, 1986 N.Y.Laws, ch. 682, § 4. To manage the litigation, all of the cases in the Southern and Eastern Districts were assigned for pre-trial purposes to Judge Sifton. Racich, 887 F.2d at 395.

At a pretrial conference on November 4, 1988, the court proposed that another asbestos tort case, Higgins v. Raymark Industries, Inc., CV-87-0537 (S.D.N.Y.), be consolidated with Johnson which was scheduled for trial on November 7, 1988. The trial court ordered on November 7, 1988 that Higgins and Johnson be consolidated for trial. Plaintiff Higgins, a chipper and caulker, whose work included chipping off welded sections to prepare for repair work of others, was alleged to have died because of exposure to asbestos while at the Brooklyn Navy Yard from approximately 1946 to 1966. Appellee-plaintiff, John Johnson (plaintiff), an electrician's helper, alleged that he had contracted lung disease while working at the Brooklyn Navy Yard from 1942 to 1945 by inhaling asbestos fibers during this employment.

In Johnson and Higgins compensatory and punitive damages were sought for claims sounding in negligence and strict liability for defendants' failure to warn of the health risks of their asbestos-containing products.

The Court declined to trifurcate or bifurcate the trial to separate issues of causation and compensatory damages from issues of liability and punitive damages. Appellants' motions to have separate juries consider claims of liability and punitive damages in Johnson, apart from claims in Higgins, were denied. Appellants' motion to preclude all evidence of knowledge post-1945 in relation to plaintiff Johnson was denied. Eight defendants settled and one filed a petition in bankruptcy prior to trial. The Higgins and Johnson cases proceeded to trial against defendants Celotex, Owens-Illinois and Raymark Industries, Inc. (Raymark). The jury rendered a verdict for the plaintiffs in both cases. In Higgins, plaintiff was awarded $1 million in compensatory damages and $3 million in punitive damages, divided equally among Celotex, Raymark and Owens-Illinois. In Johnson compensatory damages were $350,000 (Celotex 12.5%, Raymark 12.5%, Owens-Illinois 5.0%, seven settling co-defendants 10% each), and punitive damages were assessed as follows: Celotex $1 million, Raymark $1 million and Owens-Illinois $800,000. Plaintiff Ann Marie Johnson was awarded $30,000 for loss of services.

After the verdict, but before entry of judgment, it was discovered that Celotex had never been named or served as a defendant in the Higgins case. Further, since Florida was the principal place of business of Celotex and the residence of plaintiff in Higgins, the trial court determined there was lack of diversity as to Celotex.

In response to post-trial motions the Court ordered an amendment to the pleadings to add Celotex as a party-defendant pursuant to Rule 15(b) of the Federal Rules of Civil Procedure. The Court then dismissed the complaint in the Higgins case as to Celotex for lack of jurisdiction and retained its diversity jurisdiction over defendants Raymark and Owens-Illinois. A subsequent bankruptcy proceeding has stayed this case with regard to Raymark.

FACTS

Plaintiff John Johnson, an employee of the United States Navy, worked as an electrician's helper at the Brooklyn Navy Yard from 1942 to 1945. The Brooklyn Navy Yard covered an area of about three miles and in the entire yard there were approximately 20 ships under construction or repair. He installed electrical wiring in new and older ships. Although Johnson did not work with any product that he knew contained asbestos, he worked in the vicinity of other tradespeople who installed asbestos insulation material on ships. Johnson could not identify by name any workers in his vicinity or the trade name or manufacturer of any asbestos materials used at the shipyard. Johnson recalled working on destroyers, battleships and in particular remembered working on the Iowa, the Missouri and the Franklin at the yard. He testified that his work area was always dusty and that he would brush off a very fine snow-like dust that accumulated on his clothes.

Product identification testimony was based upon the testimony of other workers employed at the Navy Yard at approximately the same time as Johnson. The co-workers identified over a dozen makers of asbestos-containing products used at the Navy Yard at different times.

In 1945, Johnson left the Navy Yard and was not later exposed to any other asbestos containing products. In 1985, after retirement, Johnson was diagnosed with a lung condition which was attributed to asbestos exposure.

CONTENTIONS OF THE PARTIES

Appellants contend the trial court abused its discretion in consolidating the Johnson and Higgins cases. They further urge the connection with plaintiff's injury and appellants' products was insufficient as a matter of law. As to the issue of punitive damages, appellants maintain the Fourteenth Amendment bars an award of punitive damages because appellants have been subjected to repeated punitive damages for the same course of conduct. They also claim procedural due process violations and contend that the punitive damages were not supported by the evidence as a matter of law. Lastly, appellants claim the improper conduct of the trial court together with inflammatory conduct by counsel for plaintiff and improper rulings allowed the jury to hear evidence that should not have been heard, all resulting in a verdict which was the result of pressure and prejudice and which should be revised.

Appellants seek reversal of the judgment, or in the alternative, request that the judgment be vacated and the case be remanded for a new trial as to all issues. Celotex requests that in the alternative, the punitive damage award should be vacated and the case remanded on the issue of punitive damages. Plaintiff seeks affirmance of the judgment below.

DISCUSSION

Consolidation

Rule 42(a) of the Federal Rules of Civil Procedure empowers a trial judge to consolidate actions for trial when there are common questions of law or fact to avoid unnecessary costs or delay. Ellerman Lines, Ltd. v. Atlantic Gulf Stevedores, Inc., 339 F.2d 673 (3d Cir. 1964), cert. denied, 382 U.S. 812, 86 S.Ct. 23, 15 L.Ed.2d 60 (1965); Zervos v. S.S. Sam Houston, 427 F.Supp. 500 (S.D.N.Y. 1976), aff'd, 636 F.2d 1202 (2d Cir. 1980).

Consolidation of tort actions sharing common questions of law and fact is commonplace. See, e.g., Arnold v. Eastern Air Lines, Inc., 681 F.2d 186 (4th Cir. 1982), cert. denied, 460 U.S. 1102, 103 S.Ct. 1801, 76 L.Ed.2d 366 (1983); Kershaw v. Sterling Drug, Inc., 415 F.2d 1009 (5th Cir. 1969). This is true of asbestos-related personal injury cases as well. See, e.g., Hendrix v. Raybestos-Manhattan, Inc., 776 F.2d 1492 (11th Cir. 1985); Neal v. Carey Canadian Mines, Ltd., 548 F.Supp. 357 (E.D.Pa. 1982), aff'd sub nom. Van Buskirk v. Carey Canadian Mines, Ltd., 760 F.2d 481 (3d Cir. 1985); Wilson v. Johns-Manville Sales Corp., 107 F.R.D. 250 (S.D.Tex. 1985).

The trial court has broad discretion to determine whether consolidation is appropriate. See, e.g., Midwest Community Council, Inc. v. Chicago Park Dist., 98 F.R.D. 491 (N.D.Ill. 1983); Stemler v. Burke, 344 F.2d 393 (6th Cir. 1965). In the exercise of discretion, courts have taken the view that considerations of judicial economy favor consolidation. See, e.g., Romacho v. Stanley, 567 F.Supp. 1417, 1419 n. 2 (S.D.N.Y. 1983), aff'd sub nom. Morse v. Stanley, 732 F.2d 1139 (2d Cir. 1984). However, the discretion to consolidate is not unfettered. Arnold v. Eastern Air Lines, Inc., 712 F.2d 899 (4th Cir. 1983) (en banc), cert. denied, 464 U.S. 1040, 104 S.Ct. 703, 79 L.Ed.2d 168 (1984). Considerations of convenience and economy must yield to a paramount concern for a fair and impartial trial. Flintkote Co. v. Allis-Chalmers Corp., 73 F.R.D. 463 (S.D.N.Y. 1977). When exercising its discretion, the court must consider:

[W]hether the specific risks of prejudice and possible confusion [are] overborne by the risk of inconsistent adjudications of common factual and legal issues, the burden on parties, witnesses, and available judicial resources posed by multiple lawsuits, the length of time required to conclude multiple suits as against a single one, and the relative expense to all concerned of the single-trial, multiple-trial alternatives.

Hendrix, 776 F.2d at 1495 (quoting Arnold, 681 F.2d at 193). When considering consolidation, a court should also note that the risks of prejudice and confusion may be reduced by the use of cautionary instructions to the jury and verdict sheets outlining the claims of each plaintiff. Id.

In the instant case, the court properly exercised its discretion in consolidating these two cases for trial. Courts in the Southern and Eastern Districts of New York have used the criteria outlined in an unreported Maryland district court case, In re All Asbestos Cases Pending in the United States District Court for the District of Maryland, (D.Md. Dec. 16, 1983) (en banc), (hereinafter In re Maryland Asbestos Cases) as a guideline in determining whether to consolidate asbestos exposure cases. See, e.g., In re Joint Eastern and Southern Districts Asbestos Litigation, 125 F.R.D. 60, 64 (E.D.N.Y./S.D.N.Y. 1989); In re Joint Eastern and Southern Districts Asbestos Litigation, slip op. at 7, 1990 WL 4772 (E.D.N.Y./S.D.N.Y. Jan. 16, 1990). In In re Maryland Asbestos Cases, the criteria included: "(1) common worksite; (2) similar occupation; (3) similar time of exposure; (4) type of disease; (5) whether plaintiffs were living or deceased; (6) status of discovery in each case; (7) whether all plaintiffs were represented by the same counsel; and (8) type of cancer alleged . . . ." In re Maryland Asbestos Cases at 3. Johnson and Higgins had the following characteristics: (1) common worksite; (2) similar occupation to the extent that both workers were exposed to asbestos in a bystander capacity (they worked in trades that did not involve direct handling of asbestos products); (3) Johnson's period of exposure was from 1942 to 1945 while Higgins' exposure was from approximately 1946 to 1966; (4) Johnson contended that he suffered from asbestosis and asbestosis-related pleural disease while it was alleged that Higgins died as a result of asbestosis and lung disease; (5) Johnson was living and Higgins was deceased; (6) Johnson and Higgins were both ready for trial; and (7) all plaintiffs were represented by the same counsel. Instructions were given throughout the trial and in the charge to caution the jury to consider each plaintiff's claims individually. Two separate verdict forms were provided to the jury, one for Johnson, the other for Higgins.

An appellate court will not disturb a trial court's decision to consolidate unless a clear abuse of discretion is shown. Hendrix, 776 F.2d at 1495. In the instant case, the trial court was well within its discretion to consolidate the two cases and the court acted throughout in a manner which ensured that each plaintiff's claim was considered separately.

Connection Between Plaintiff's Injury and Appellants' Product

In order to succeed on his claim, plaintiff had the burden of proving to the jury that he was exposed to appellants' merchandise and that it is more likely than not that this exposure was a substantial factor in his injury. Derdiarian v. Felix Contracting Corp., 51 N.Y.2d 308, 434 N.Y.S.2d 166, 414 N.E.2d 666 (1980). Plaintiff had to establish that his injury was proximately caused by appellants' asbestos and produce evidence identifying each appellant's product as being a factor in his injury. Hymowitz v. Eli Lilly Co., 73 N.Y.2d 487, 541 N.Y.S.2d 941, 539 N.E.2d 1069, cert. denied, ___ U.S. ___, 110 S.Ct. 350, 107 L.Ed.2d 338 (1989). Plaintiff admits to presenting to the jury "an unusually detailed circumstantial case." Plaintiff contends that by the "cumulative and uncontradicted nature" of the case, the jury was able to conclude not only that there was exposure, but was compelled to come to that result.

Plaintiff worked at the Navy Yard from 1942 to 1945 as an electrician's helper on board ships including the Missouri, the Iowa and the Franklin. Testimony was provided by eleven men who worked at the Navy Yard in various capacities, some during the same time period as Johnson, some before and after plaintiff's employment. Witness James Shannon worked at the Navy Yard from 1940 to 1965 as a plumber's helper and a welder. Shannon recalled working on the Iowa at some time between 1940 and 1944 and identified Philip Carey (Celotex) products, including fifty-pound bags of asbestos cement with the words "Philip Carey" written on them, and Owens-Illinois products, including asbestos pipe covering and the brown boxes containing this material both bearing the name "Owens-Illinois," as being in use during that time period on board the Iowa. Shannon's testimony indicated that the only two ships he worked on during the time period 1940-1944 were the North Carolina and the Iowa. He remembered working first on the North Carolina, for at least one year and possibly two, before working on the Iowa. From his testimony, the jury could infer that he worked on the Iowa during the latter part of this time frame which would place Shannon and Johnson on the Iowa at the same time.

Several of the witnesses testified as to the close interaction of the different crews working together. Moe Rapchik, a sheet metal worker from 1941 to 1945 who worked on board the Iowa in 1942, stated that in the course of his employment he worked with "almost every different crew that the Navy Yard had to offer which was electricians, machinists, shipfitters, pipefitters and asbestos installers." Joint Appendix at 322. Although Rapchik could not recall the specific company names of the products used on board the Iowa, he identified Owens-Illinois' Kaylo pipe covering and Celotex's Philip Carey asbestos cement as being in use during the time period 1941 to 1945 and stated that the products installed on the Iowa were the same types of products that were installed on every other ship he worked on. Rapchik described the asbestos fibers in general as being "[a]ll over the deck. . . . We crushed them with our feet as we walked . . . and that is how we got it all over our clothes and when we got home at night, we were white all over." Joint Appendix at 329. These descriptions conform to plaintiff's own testimony of working in close, dusty surroundings with other crew members.

Appellants contend that there was insufficient evidence to establish proximate cause and that therefore the case should not have gone to the jury. As an appellate court, we are "`bound to view the evidence in the light most favorable to [the plaintiff] and to give [him] the benefit of all inferences which the evidence fairly supports, even though contrary inferences might reasonably be drawn.'" Michelman v. Clark-Schwebel Fiber Glass Corp., 534 F.2d 1036, 1042 (2d Cir.) (quoting Continental Ore Co. v. Union Carbide Carbon Corp., 370 U.S. 690, 696, 82 S.Ct. 1404, 1409, 8 L.Ed.2d 777 (1962)), cert. denied, 429 U.S. 885, 97 S.Ct. 236, 50 L.Ed.2d 166 (1976). As the Sixth Circuit noted in Pratt v. National Distillers Chemical Corp., "We are not to reweigh evidence to reach our own conclusions about the correctness of a jury's decision; our task is simply to determine whether reasonable jurors could, under any theory submitted to them, have resolved the dispute as they did." 853 F.2d 1329, 1337 (6th Cir. 1988), cert. denied, ___ U.S. ___, 109 S.Ct. 1121, 103 L.Ed.2d 184 (1989). Reviewing the evidence in the light most favorable to the plaintiff, we find that proximate cause existed and that the jury's verdict must be upheld.

Punitive Damages

Appellants contend that the Fourteenth Amendment bars the award of punitive damages in this case because subjecting the appellants to repeated punitive damages violates their substantive due process rights. Appellants further maintain that their procedural due process rights were violated by the way in which the punitive damages claim was tried in this case. They also claim that the award of punitive damages was not supported by the evidence as a matter of law.

Appellants argue that the multiple imposition of punitive damages against them for the same course of conduct offends the fundamental fairness inherent in due process. They cite Browning-Ferris Indus. v. Kelco Disposal, Inc., ___ U.S. ___, 109 S.Ct. 2909, 2921, 106 L.Ed.2d 219 (1989), where the Supreme Court explicitly refused to consider "whether due process acts as a check on undue jury discretion to award punitive damages in the absence of any express statutory limit" because this question was not before the court. While refraining from addressing this issue directly, the opinions made clear that this question was a substantial one. Id. at 2921 n. 23. See also the opinions by Justice Brennan (joined by Justice Marshall), id. at 2923-24, and Justice O'Connor (joined by Justice Stevens), id. at 2924.

This Court recently reviewed the issue of punitive damages in an asbestos-related personal injury action in Racich v. Celotex Corp., 887 F.2d 393. In Racich, appellant Celotex contended, inter alia, that the plaintiff's claim for punitive damages was not permitted under New York's one-year revival statute, 1986 N.Y.Laws, ch. 682, § 4, and that punitive damages were inappropriate as a matter of New York law and public policy. The Court found Celotex's arguments to be unpersuasive. While Celotex raised a substantive due process claim, arguing that multiple imposition of punitive damages for the same course of conduct offended fundamental fairness, the Court did not reach that issue since Celotex did not preserve it for appellate review. Id. at 398. In the instant case, the substantive due process claim that multiple imposition of punitive damages for the same course of conduct violated fundamental fairness has been preserved on appeal by only one appellant, Owens-Illinois, who raised this issue in its Memorandum in Support of a Motion for a Judgment Notwithstanding the Verdict. Appellant Celotex failed to raise this due process argument prior to briefing for this appeal. A careful reading of Defendants' Memorandum of Law in Support of Defendants' Motion to Dismiss and for Summary Judgment does not bear out appellant Celotex's contention that this claim was raised. We decline to set aside the punitive damages awarded by the jury since there has been insufficient proof to demonstrate an unjust result of multiple imposition of punitive damages for the same course of conduct.

Appellant Celotex asked this Court to take judicial notice of punitive damages in judgments against them in not only the Southern and Eastern Districts of New York, but in "appeals pending in other cases before this Court, as well as judgments entered in the dockets of the district courts of this and other circuits." Reply Brief for Defendant-Appellant The Celotex Corporation at 14. Appellant Owens-Illinois noted that it advised the trial court of punitive damage awards made, but not paid, in two Southern District cases. Plaintiff contends that substantial portions of the punitive damages assessed have not been paid out by appellants and that in some cases which have been settled or are still on appeal, no punitive damages have been paid at all. Appellants themselves provide no documentation as to exactly how much money they have actually paid in punitive damages. The record here simply is insufficient to permit an examination of the claim that there is a multiple award of punitive damages offensive to the fundamental fairness inherent in due process.

As the Court noted in Racich, "we do not write upon a clean slate. . . ." 887 F.2d at 399. In Roginsky v. Richardson-Merrell, Inc., 378 F.2d 832, 835 (2d Cir. 1967), a claim was made that multiple awards of punitive damages based upon the same course of conduct was a violation of due process. The Court observed that there was "the gravest difficulty in perceiving how claims for punitive damages in such a multiplicity of actions throughout the nation can be so administered as to avoid overkill." Id. at 839. The Court concluded, however, that "the New York cases afford no basis for our predicting that the Court of Appeals would adopt a rule disallowing punitive damages in a case such as [ Roginsky], and the Erie doctrine wisely prevents our engaging in such extensive law-making on local tort liability. . . ." Id. at 841.

In Racich, the Court pointed out that while we did not reject the argument that an award of punitive damages unless governed by precise standards violates due process, we did not accept that argument, "believing that the only course open . . . was `the more modest' task of `assessing the sufficiency of the evidence within the framework' of New York law." 887 F.2d at 399 (quoting Roginsky, 378 F.2d at 841). The Court in Racich said:

[W]e are here asked to hold . . . that the commonlaw standards applied by the courts of New York for imposition of punitive damages are unconstitutional, and that our own cases applying that law were in error. . . . This would be a far-reaching holding indeed, particularly in the context of mass tort litigation that suggests the need for a uniform, national rule on the issue. Under all the circumstances, we believe that such a step, if it is to be taken (and we express no view as to that), is best left for Congress or for higher judicial authority.

Id. (citations omitted). We follow this same course, and leave for another day and a better documented record the question of whether successive awards are violative of due process.

In the instant case, the trial judge informed the jury in his charge that punitive damages may be awarded if plaintiffs "clearly and convincingly established that the acts of a defendant [the jury was] considering causing the injury you [sic] complained of were wanton and reckless." Joint Appendix at 2123. An act was defined as wanton and reckless when "done in such a manner and under such circumstances as to show heedlessness and an utter disregard of the results upon the rights and safety of others that may flow from doing the act, or in the manner in which it is done." Id. at 2124. No claim has been made by appellants that this charge was not in accordance with New York law.

A review of the evidence shows that the award of punitive damages was supported by the evidence as a matter of law. Plaintiff produced evidence at trial through expert witnesses, medical reports and documents from which the jury could reasonably conclude that appellants acted in a wanton or reckless manner. For example, plaintiff's expert witness testified that a link between asbestos and lung cancer was suspected as early as 1930 and that this link was considered to be probable shortly after 1940. Another expert witness stated in his deposition that by 1942 there were enough cases of the association between lung cancer and asbestos to include this information in a medical textbook on occupational cancer. A former employee of Owens-Illinois testified that workers at a New Jersey plant, including plant executives, wore respirators in the areas of loose raw material including asbestos. The jury was free to conclude from this and other evidence presented that appellants knew of the dangers of asbestos and did not adequately protect or warn users of asbestos, thereby acting in a wanton or reckless manner.

Appellants further maintain that their procedural due process rights were violated by the manner in which the punitive damages claim was tried. Owens-Illinois specifically contends that the consolidation of Johnson and Higgins and the failure to erect procedural safeguards during the consolidated trial violated appellants' due process rights. Since we have found the consolidation was not an abuse of discretion, and since the trial judge carefully instructed the jury throughout the trial to consider each plaintiff's claims individually, there was no need to provide other procedural safeguards concerning the consolidation.

Owens-Illinois admits that it never specifically made a request for bifurcation of the damages aspect of the punitive damages claim, but argues that it did make a motion to bifurcate the entire punitive damages claim as well as a motion to trifurcate all triable issues. Appellant further argues that the trial judge granted bifurcation in a previous asbestos-related personal injury case. Plaintiff contends that the trial court invited appellants to bifurcate the damages aspect of the punitive damages claim and that appellants made a tactical decision not to give the jury two separate opportunities to assess damages against them. Regardless of appellants' motives in fashioning a motion for bifurcation, the fact that bifurcation did not occur is not necessarily prejudicial to appellants. The decision to bifurcate is within the discretion of the trial judge. In re Master Key Antitrust Litigation, 528 F.2d 5, 14 (2d Cir. 1975). The fact that a previous case tried by the same judge was bifurcated has no bearing on the instant case.

Conduct of the Court and Counsel

Appellants contend that improper conduct of the trial court and inflammatory conduct by plaintiff's counsel during summation denied them a fair and impartial trial.

Owens-Illinois alleges specifically that counsel described witnesses as "liar[s]", "sleaze" and "clown[s]." Appellants contend they were prejudiced both by counsel's use of the words "evil" and "vicious" to describe them, and counsel's characterization of appellants' defense as "obscene", "ugly" and "ridiculous." Appellants also complain of counsel's invocation of the "Golden Rule" (do unto others as you would have them do unto you) and the use of a strategy that included an appeal to class prejudice. This Court finds that counsel's behavior did not rise to the level of denying appellants a fair and impartial trial.

Throughout the normal course of the trial and in his final charge, the trial judge instructed the jury to decide the case in a rational manner based on the evidence presented and not on emotions, sympathy, prejudice, or bias. In denying appellants' motion for mistrial, the trial judge determined that none of the derogatory descriptive statements complained of was so inflammatory as to require a new trial. The court found that all but two of the counsel's alleged appeals to the Golden Rule argument related to liability only and not damages and were therefore not improper. Burrage v. Harrell, 537 F.2d 837 (5th Cir. 1976). The remaining two instances were determined to be of a nature that would not unduly affect the jury in light of the judge's charge. The appeal to class prejudice was found to be of a class of remarks which are not per se grounds for a new trial and in the context of the entire summation, did not create undue passion. We agree. Great discretion is to be given the judge who was present throughout the trial and is best able to determine the effect of the conduct of counsel on the jury. Arnold, 681 F.2d at 194.

Appellants contend that the trial judge failed to control the behavior of plaintiff's counsel and that the judge himself contributed to an atmosphere not conducive to fair play by questioning the plaintiff and coaching his answers. Celotex points specifically to two exchanges between the judge and the plaintiff.

The trial judge also brought to the attention of all counsel that he had heard testimony of one of appellants' expert witnesses in a previous case and had found the witness to be less than credible. One defense counsel expressed concern that the judge could sit fairly on the instant case and stated that the judge had been acting in an uncomplimentary manner throughout the witness' testimony. The judge denied defense counsel's characterization of his manner during the testimony.

It is well settled that a judge is authorized to ask questions of a witness which may aid the understanding of the jury. United States v. Lamont, 565 F.2d 212, 220 (2d Cir. 1977) cert. denied, 435 U.S. 914, 98 S.Ct. 1467, 55 L.Ed.2d 505 (1978). In the instant case, Mr. Johnson has been described by his counsel and an expert appellant witness as a man of few words. It would appear then, that the judge was merely attempting to clarify matters that seemed to call for further explanation, as the judge told the jury in his charge.

As to the manner of the judge throughout the testimony of the expert witness, we are satisfied that his instructions to the jury cured even the appearance of any impropriety. United States v. Robinson, 635 F.2d 981, 985 (2d Cir. 1980), cert. denied, 451 U.S. 992, 101 S.Ct. 2333, 68 L.Ed.2d 852 (1981).

CONCLUSION

For the above-stated reasons the judgment of the district court is affirmed.