delivered the opinion of the Court.
This case comes here on certiorari to review a judgment of the Court of Appeals for the Sixth Circuit, 65 F. (2d) 232, which affirmed a judgment of the district court, denying recovery on two policies of accident insurance. Separate suits brought by petitioner, the beneficiary of the policies under which her deceased husband was the insured, were consolidated and were heard and decided on demurrer. The insured, while playing golf, suffered a sunstroke, from which he died. Pétitioner sought recov*495ery of amounts stipulated, in one policy, to be paid if death should result
“directly and independently of all other causes from bodily injuries effected through external, violent and accidental means, and not directly or indirectly, wholly or partly from disease or physical or mental infirmity,” and, in the other policy, if death should result “ from bodily injuries effected directly and independently of all other causes through external, violent and accidental means.”
Both declarations, in each of four counts, alleged that the deceased in the month of August, while in good health and while playing golf in his accustomed manner at a place where many others were playing without injury, was-suddenly and unexpectedly overcome from the force of the sun’s rays upon- his head and body and that shortly afterward he died; that an autopsy revealed that there was no bodily infirmity or disease which, could have been a contributing cause of his death. In one count of each declaration it was alleged that at the time the insured received the injury resulting in his death there was, unknown-. to him, a temporary disorder or condition of his body, not amounting to a physical or mental infirmity within the meaning of the policies, which, for the time being, rendered him more than ordinarily sensitive to the heat of the sun and that this temporary and unknown condition “ intervened between his intentional act of playing golf, which he intended and expected to perform safely and which others did perform safely at the same time and place, and the injury which followed.”
Petitioner argues that the death, resulting from voluntary exposure to the sun’s rays under normal conditions, was accidental in the common or popular sense of the term and should therefore be held to be within the liability clauses of the policies. But it is not enough, to establish liability under these clauses, that the death or injury *496was accidental in the understanding of the average man— that the result of the exposure “ was something unforeseen, unsuspéeted, extraordinary, an unlooked for mishap, and so an accident,” see Lewis v. Ocean Accident & G. Corp., 224 N.Y. 18, 21; 120 N.E. 56; see also Aetna Life Ins. Co. v. Portland Gas & Coke Co., 229 Fed. 552 — for here the carefully chosen words defining liability distinguish between the result and the external means which produces it. The insurance is not against an accidental result. The stipulated payments are to be made only if the bodily injury, though unforeseen, is effected by means which are external and accidental. The external means is stated to be the rays of the sun, to which the insured voluntarily exposed himself. Petitioner’s pleadings do not suggest that there was anything in the sun’s rays, the weather or other circumstances, external to the insured’s own body and operating to produce the unanticipated injury, which was unknown or unforeseen by the insured.
We do not intimate that injuries resulting from as impalpable a cause as the inadvertent introduction into the body of noxious germs may not be deemed to be effected by external accidental means. See Western Commercial Travelers Assn. v. Smith, 85 Fed. 401; Jensma v. Sun Life Assur. Co., 64 F. (2d) 457. Nor do we say that in other circumstances an unforeseen and hence accidenta! result may not give rise to the inference that the external means Was also accidental. Compare Jensma v. Sun Life Assur. Co., supra; Gustafson v. New York Life Ins. Co., 55 F. (2d) 235. But, in the light of. such knowledge as we have, no such inference can arise from the bare allegation of death by sunstroke, compare Pope v. Prudential Ins. Co., 29 F. (2d) 185; Ryan v. Continental Casualty Co., 47 F. (2d) 472, with no indication that some unforeseen or unintended condition or combination of circumstances, external to the state of the victim’s body, contributed to the *497accidental result. The petitioner has thus failed to plead facts establishing the liability defined by the policy.
In U.S. Mutual Accident Assn. v. Barry, 131 U.S. 100, the insured suffered an internal injury caused by his jumping voluntarily from a platform to the ground, a distance of four or five feet. Recovery was allowed of amounts stipulated by the policy to be paid upon proof of bodily injury “ effected through external violent and accidental means.” There waá evidence from which the jury might have inferred that the insured alighted in' a manner not intended, causing a jar or shock of unexpected severity. This Court held that the trial judge correctly left to the jury the question whether the insured jumped or alighted in the manner he intended and properly charged that, if he did; not, it might find that the injury was caused by accidental means, pp.109, 110, 121.
This distinction between accidental external means and accidental result has been generally recognized and applied where the stipulated liability is fof-injury resulting from an accidental external means. See Aetna Life Ins. Co. v. Brand, 265 Fed. 6; Lincoln National Ins. Co. v. Erickson, 42 F. (2d) 997; Jensma v. Sun Life Assur. Co., supra; Order of United Commercial Travelers v. Shane, 64 F. (2d) 55; contra, Mutual Life Ins. Co. v. Dodge, 11 F. (2d) 486. And injury from sunstroke, when Resulting from voluntary'exposure by.an insured to' the sun’s rays, even though an accident, see Ismay, Imrie & Co. v. Williamson [1908] A. C. 437, has been generally held hot to have been caused by external accidental means. Nickman v. New York Life Ins. Co., 39 F. (2d) 763; Paist v. Aetna Life Ins. Co., 54 F. (2d) 393; Harloe v. California State Life Ins. Co., 206 Cal. 141; 273 Pac. 560; Continental Casualty Co. v. Pittman, 145 Ga. 641; 89 S.E. 716; Semancik v. Continental Casualty Co., 56 Pa. Super. Ct. 392; see Elsey v. Fidelity & Casualty Co., 187 Ind. 447; *498120 N.E. 42; Richards v. Standard Accident Ins. Co., 58 Utah 622; 200 Pac. 1017; contra, Continental Casualty Co. v. Bruden, 178 Ark. 683; 11 S.W. (2d) 493; Lower v. Metropolitan Life Ins. Co., 111 N.J.L. 426; 168 Atl. 592.
Affirmed.