opinion: Per Curiam.
  This is a diversity case. Petitioner (the insurer) issued a life insurance policy in Michigan to Dean E. Cane providing for double indemnity if Cane's “death was the result of an injury sustained while the insured was a passenger in or upon a public conveyance then being operated by a common carrier to transport passengers for hire ....'' Cane was killed in Illinois by a freight train while crossing a railroad track in order to board a commuter train which had not yet arrived at the station. The insurer paid Cane's estate ordinary benefits, but denied liability under the double indemnity provision of the policy.
  The administrator of Cane’s estate (respondent) sued the insurer in the District Court for the Northern District of Illinois to recover benefits under the double indemnity provision. The District Court held that under Illinois conflict-of-laws rules, the law of the situs of the contract (Michigan) applied, and that under Michigan law the insurer was liable only for ordinary benefits. The administrator appealed. The insurer argued in the Court of Appeals for the Seventh Circuit that the District Court’s application and interpretation of Michigan law was correct, and alternatively that Illinois conflict-of-laws rules required application of Illinois— not Michigan — substantive law in this case, and that under Illinois substantive law its liability was also only for ordinary benefits. The Court of Appeals reversed, 524 F. 2d 376 (1975), but without reaching the question of which State’s substantive law would be applicable under the Illinois conflicts rule. The court held that the insurer was precluded from arguing on appeal the applicability of Illinois substantive law, because it had not cross-appealed from the District Court’s ruling that Michigan law applied. Id., at 379 n. 1.
  The Court of Appeals’ decision on this issue is plainly at odds with the “inveterate and certain” rule, Morley Co. v. Maryland Cas. Co., 300 U. S. 185, 191 (1937), of United States v. American Ry. Exp. Co., 265 U. S. 425, 435 (1924), where a unanimous Court said:
  “It is true that a party who does not appeal from a final decree of the trial court cannot be. heard in opposition thereto when the case is brought here by the appeal of the adverse party. In other words, the appellee may not attack the decree with a view either to enlarging his own rights thereunder or of lessening the rights of his adversary, whether what he seeks is to correct an error or to supplement the decree with respect to a matter not dealt with below. But it is likewise settled that the appellee may, without taking a cross-appeal, urge in support of a decree any matter appearing in the record, although his argument may involve an attack upon, the reasoning of the lower court or an insistence upon matter overlooked or ignored by it.” (Footnote omitted.)
  The argument of the insurer before the Court of Appeals that Illinois, not Michigan, substantive law applied was no more than “an attack upon the reasoning of the lower court,” and as such required no cross-appeal.
  Because the Court of Appeals did “not reach the issue nor express any opinion on the effect of the tort claim conflicts of law doctrine” of Illinois, 524 F. 2d, at 379 n. 1, we think it “appropriate to remand the case rather than deal with the merits of that question in this Court.” Dandridge v. Williams, 397 U. S. 471, 476 n. 6 (1970). Accordingly, the petition for writ of certiorari is granted, the judgment of the Court of Appeals is vacated, and the case is remanded for further proceedings in conformity with this opinion.
  So ordered.
  Mr. Justice Stevens took no part in the consideration or decision of this case.
instruction: What follows is an opinion from the Supreme Court of the United States. Your task is to determine the ideological "direction" of the decision ("liberal", "conservative", or "unspecifiable"). Use "unspecifiable" if the issue does not lend itself to a liberal or conservative description (e.g., a boundary dispute between two states, real property, wills and estates), or because no convention exists as to which is the liberal side and which is the conservative side (e.g., the legislative veto). Specification of the ideological direction comports with conventional usage. In the context of issues pertaining to criminal procedure, civil rights, First Amendment, due process, privacy, and attorneys, consider liberal to be pro-person accused or convicted of crime, or denied a jury trial, pro-civil liberties or civil rights claimant, especially those exercising less protected civil rights (e.g., homosexuality), pro-child or juvenile, pro-indigent pro-Indian, pro-affirmative action, pro-neutrality in establishment clause cases, pro-female in abortion, pro-underdog, anti-slavery, incorporation of foreign territories anti-government in the context of due process, except for takings clause cases where a pro-government, anti-owner vote is considered liberal except in criminal forfeiture cases or those where the taking is pro-business violation of due process by exercising jurisdiction over nonresident, pro-attorney or governmental official in non-liability cases, pro-accountability and/or anti-corruption in campaign spending pro-privacy vis-a-vis the 1st Amendment where the privacy invaded is that of mental incompetents, pro-disclosure in Freedom of Information Act issues except for employment and student records. In the context of issues pertaining to unions and economic activity, consider liberal to be pro-union except in union antitrust where liberal = pro-competition, pro-government, anti-business anti-employer, pro-competition, pro-injured person, pro-indigent, pro-small business vis-a-vis large business pro-state/anti-business in state tax cases, pro-debtor, pro-bankrupt, pro-Indian, pro-environmental protection, pro-economic underdog pro-consumer, pro-accountability in governmental corruption, pro-original grantee, purchaser, or occupant in state and territorial land claims anti-union member or employee vis-a-vis union, anti-union in union antitrust, anti-union in union or closed shop, pro-trial in arbitration. In the context of issues pertaining to judicial power, consider liberal to be pro-exercise of judicial power, pro-judicial "activism", pro-judicial review of administrative action. In the context of issues pertaining to federalism, consider liberal to be pro-federal power, pro-executive power in executive/congressional disputes, anti-state. In the context of issues pertaining to federal taxation, consider liberal to be pro-United States and conservative pro-taxpayer. In miscellaneous, consider conservative the incorporation of foreign territories and executive authority vis-a-vis congress or the states or judcial authority vis-a-vis state or federal legislative authority, and consider liberal legislative veto. In interstate relations and private law issues, consider unspecifiable in all cases.