This appeal is from a judgment, rendered upon the verdict of a jury in response to special issues, awarding appellee, M. B. Warner, compensation for total and permanent disability caused by heatstroke received while fighting a fire on the premises of the Ohio Oil Company’s lease, for whom he was working, and for whom appellant was the compensation carrier, under the Workmen’s Compensation Law, Article 8306 et seq., Vernon’s Texas Civil Statutes.
Points 1 and 2 in appellant’s brief raise the contention that the evidence is insufficient to sustain the verdict and judgment, in that, it is claimed, the undisputed testimony shows that plaintiff’s incapacity was solely the result of heart disease. Points 4, 5 and 6 raise the contention that the testimony was insufficient to show “good cause” for appellee’s failure to file his claim with the Industrial Accident Board within six months from date of his injury, as required by Article 8302, Sec. 4a, Vernon’s Texas Civil Statutes. We are unable to agree with either of the contentions. Ap-pellee testified, in substance, that he had been working for the Ohio Oil 'Company 'approximately eighteen years, regularly six days per week, without losing any time; that he was in good health so far as he knew, and had always been able to do his work; that his job was firing the boiler, pumping water and oil, and cleaning up around the ■station on the lease; that in September or October of 1938, on a warm day, while fighting an oil fire on the lease, he became overheated, turned blind, “fell out”, and remained unconscious for about fifteen' to twenty minutes; that upon regaining consciousness he was extremely cold, clammy, sweaty and weak; that he then started to walk to his dwelling house (located about 300 yards distant), got about halfway and was, from there on, assisted by his wife and son-in-law to his home, where he went to bed; that in about two weeks he went back to work; that this occurred on Friday or Saturday and during that week he went to see a doctor who treated him; that the
Dr. George E. Hurt, witness for appel-lee, testified that in April 1940, he made a physical, X-ray, laboratory, and heart graph examination of appellee and found him suffering from a bad heart condition; that he had “double mitral insufficiency”; that “the mitral valves had been destroyed and that he had an aortic regurgitation; in other words, a regurgitation of the blood from the larger blood vessels back into the heart”; that he examined appellee again on the day before testifying and found that all the valves of the heart had become involved; that appellee is not now and never will be able to work; that “if he takes proper amount of'rest and is careful, he may be •able to live a few years, but that he should now be in bed.” In answer to a question incorporating a history of the case as related in appellee’s testimony, Dr. Hurt testified that in his opinion the first spell ap-pellee had, at time of fighting the oil fire, “was an acute heart attack, precipitated, by exhaustion and by being overheated and putting too great a strain .on the heart.” He further testified that a man with a weak heart is more susceptible to a heat stroke or heat exhaustion than one with a strong ,
We think the testimony above set out is sufficient to support the findings of the jury that appellee’s disability was caused by heatstroke, and that such disability was not caused solely by heart trouble. American General Ins. Co. v. Webster, Tex.Civ.App., 118 S.W.2d 1082; New Amsterdam Casualty Co. v. Herbert, Tex.Civ.App., 296 S.W. 688; Herbert v. New Amsterdam Casualty Co., Tex.Com.App., 1 S.W.2d 608. The fact that appellee may have had a diseased heart at the time of sustaining his injury would not prevent his recovery of compensation. Guzman v. Maryland Casualty Co., 130 Tex. 62, 107 S.W.2d 356. The claimant is not required to show that the injury was the sole cause, or a proximate cause, of a disability, it is sufficient for him to show that the injury was a producing cause of the disability, Travelers’ Ins. Co. v. Peters, Tex.Com.App., 14 S.W.2d 1007, and that the existing disease was not the sole cause of the disability. Commercial Standard Ins. Co. v. Noack, Tex.Com.App., 62 S.W.2d 72.
We are of the further opinion that the testimony, above related, is sufficient to support the following findings of the jury: “that from the time he returned to work down to the time he filed his claim for compensation, M. B. Warner believed that his disability was caused by disease unconnected with injury,” and “that the failure of M. B. Warner to file his claim for compensation before he did file it was caused by his belief that the disability was caused by disease unconnected with injury,” and “that in failing to file his claim for compensation before he did file it, M. B. Warner acted as a person of ordinary prudence would have acted under the same or similar circumstances.” Texas Employers Ins. Ass’n v. Little, Tex.Civ.App., 96 S.W.2d 677; Texas Emp. Ins. Ass’n v. Roberts, 135 Tex. 123, 139 S.W.2d 80.
Points 3, 8, 9, 10, 11, 12 and 13, each seek a review of the action of the trial court in overruling appellant’s objections and exceptions to the court’s charge submitted to the jury. None of these points are supported by any proper assignment of error. The case is one in which a motion for new trial was required to be filed, and was filed, in laying a predicate for the appeal. The action of the trial court in overruling appellant’s objections and exceptions to the charge was not complained of or assigned as error in the motion for new trial. The assignment of error (No. 11 in the motion for new trial) upon which point 3 is alleged to be based reads as follows: “The court erred in that part of the main charge to the jury designated as special issue No. 1.” The other points are based upon like assignment of error as that above copied, except that they refer to special issues Nos. “16, 4, 6, 9 and 14.” ' Such assignments of error do not in any way attempt to point out to the trial court or specify the ground, if any, upon which it was meant to be founded. They fail to substantially comply with either the old rules, Stillman v.
The judgment of the trial court will be affirmed.