The plaintiff in error suggested two points for consideration. The first of these is, whether a conclusive effect is to ‘be ascribed to the decree pronouncfed in the admiralty, by which an allowance of the charge for freight claimed in this action was accorded to the defendant in error by way of set-off ? Though the affirmative of the proposition was argued with very considerable emphasis by the plaintiff here, no hesitancy is felt in resolving it negatively.
It is conceded, as an unquestionable rule, founded on public policy, that the judgment of a court of competent jurisdiction on the same subject-matter is, as a plea, a bar, and as evidence, where it is receivable without being specially pleaded, conclusive betwéen the same parties or their privies, and this without regard to the variant forms of action or modes of proceedings which may happen to be adopted as a means of litigating the points in issue: Cist v. Zeigler, 16 Serg. & Rawle, 285; Darlington v. Gray, 5 Whart. 493. Nor is it material that the plea is pleaded or the evidence given in air action instituted before the proceedings in which the former judgment or decree was pronounced; for it is still within the maxim nemo debet bis vexar£ pro una et ead&rn causa: March v. Pier, 4 Rawle, 284. But a judgment must be, in its nature, final before it can be permitted to operate as an estoppel.. He who adduces it as a means of conclusive defence must be able to show, that, until reversed, it binds the respective rights of *418the parties to it, or his antagonist may go behind it. But it is conceded, though imperfectly shown by the records given in evidence, that the decree, upon which the plaintiff in error founds in part his defence, has been regularly appealed from, and this appeal is now -pending and undetermined in the Circuit Court of the United States. Now, it is settled, that, in admiralty and maritime causes, an appeal suspends the sentence altogether, and it is not res adjudioata until the final sentence of the appellate court is pronounced. The cause is there heard de novo, as if no sentence had ever been passed: Dunlap’s Adm. Pr. 316, 317. The information filed in the inferior may be amended in the superior tribunal; for, on the appeal, it is admissible to allege what has not before been alleged, and to prove what has not before been proved: 2 Brown’s Civ. and Adm. Law, 436, 437; The Venus, 1 Wheat. 113; The San Pedro, 2 Wheat. 140; Hawthorne v. United States, 7 Cranch, 157. So far is the principle carried, that, in Yeaton v. United States, 5 Cranch, 281, where a ship had been condemned for the violation of an existing statute by both the District and Circuit Courts; but, after appeal to the Supreme Court of the United States, the statute expired by its own limitation; it was held the penalty of the act could not be enforced. In delivering the opinion of the court, Chief Justice Marshall said the cause was to be considered as if no sentence had been pronounced, and it had long been settled on general principles that, where no sentence has been awarded, a penalty could not be inflicted for the breach of a statute expired or repealed, unless under a special provision. It would be difficult to adduce a stronger illustration than is furnished by this case of the rule, that a decree in admiralty appealed from is treated as non-existent, pending the appeal; and in accordance with it is the act of Congress of 1803, c. 93, which gives the appeal and authorizes the introduction of new evidence on the hearing. The decree of the inferior court is conclusive only on a party who does not appeal from the judgment: Stratton v. Jarvis, 8 Peters, 4; and, in this particular, it is altogether unlike the case of an award made under our arbitration laws appealed from, but which may yet, according to Reed v. Garvins, 7 Serg. & Rawle, 354, be pleaded as a former recovery. But this is a consequence of the statutory provision, which gives it the effect of a judgment until reversed or modified on appeal, and it is, therefore, to be considered as final until so reversed. It has been said to be a new species of judgment. If no appeal be entered within twenty days, it becomes absolutely final; and an appeal but entitles the appellant to a trial *419by jury of the same subject-matter litigated before the arbitrators, but still leaving tbeir award untouched by the appeal: Reed v. Garvins; Gray v. Darlington, supra.
To attribute to a decree in admiralty the quality of an estoppel, might be productive of infinite injustice. In the case in hand, it would bar the plaintiff below of his demand, and yet the Circuit Court, taking a different view of the law on the facts, or of the facts, from the evidence given in the District Court, or upon new allegations and proofs, may altogether disallow the claim for damages prosecuted by the defendant’s consignor, when, of course, the allowance made for freight will fall with it. Thus the plaintiff below might be doubly defeated, and this, too, without inquiry into the merits of his claim. But we are not forced to hazard this mischief by the operation of any technical rule. As has been shown, the subject agitated in this suit had not passed in rem judicatam, properly speaking. The court below was, therefore, right in its instruction to the jury on this point. This view renders it unnecessary to consider whether the parties to the two suits can be regarded as the same, or as privies. The second question is, whether a deviation from the direct course of the voyage, under the agreement in proof, will make the master and owners of the vessel answerable for subsequent damage suffered by the cargo, though such injury was not occasioned by the deviation. The judge below was of opinion that the plaintiff was liable only for any loss actually resulting from the deviation. This opinion, we think, unquestionably correct. The contrary position is based upon a supposed analogy between the contract of a common marine carrier, where no insurance has been effected by the owner of the goods, and the contract of assurance which will be avoided by a deviation rendering the owner and master of the vessel liable to the insured. It is thought that, where there is no actual insurance, the owner of the freight is to be regarded in the double character of his own insurer and of owner, and, in the latter capacity, may claim to stand in the relation of an assured, whose policy has been determined by the misfeasance of the master. But the well-considered case of Hart v. Allen and Grant, 2 Watts, 114, established that no such analogy exists. As is said by the Chief Justice, speaking as the organ of this court, in the contract of assurance, it is the assured who enters into the warranty, which is consequently introduced for the protection of the insurer; but there is not the same reason to make it a fundamental and specific condition of the contract, where the owner of the goods is fully pro*420tected by the general liability of the carrier for the actual consequences of any delinquency. In another part of his opinion, he exhibits clearly the impolicy and impropriety of so narrowing the exception in favour of the carrier as to make him answerable for the acts of Providence, as a punishment of an independent delinquency — a rule which might subject him to make good a loss from shipwreck for having omitted to supply the ship with proper papers, a constituent part of seaworthiness, and the omission of them an undoubted negligence.
A common carrier by sea, like other carriers, is an insurer against all losses except those occasioned by Providence, the common enemy, or those he specially guards himself against by his contract. But even then, if the loss proceeds from his own negligence, or delinquency, he will be liable to make it good. Yet he is only answerable for the consequences of his delinquency, and not for its inconsequential existence. If the goods arrive safe, he cannot be called on to answer for an intervening act of impropriety, or breach of agreement, which has produced no bad results, and the rule is the same though the cargo be damaged from a cause contemplated by the contract of affreightment, as the perils of the sea, provided the cause be not' itself made efficient for injury by the negligence or other misconduct of the carrier. The judge, who tried the cause, left it fairly to the jury to say whether the injury sustained by the wheat was attributable to the deviation complained of, and they have returned a negative answer. In this I have endeavoured to show there was no error.
The whole case made here by the counsel for the plaintiff in error, is thus disposed of, and it results that the judgment must be
Affirmed.