This case was reassigned to the writer under Rule 2.07 on January 29, 1953. It is an appeal from a circuit court judgment, approving a final award of compensation by the Industrial Commission, in favor of the widow and minor child of Jess Duff, deceased employee of St. Louis Mining and Milling Corporation. The Springfield Court of Appeals affirmed (Duff v. St. Louis Mining and Milling Corp.,
Duff was oiling machinery in his employer’s mill before 8:00 A. M. when operations were to begin. There was a trough or runway (18 inches to two feet wide) between the “rougher” and the “screen”, which was directly over a hole in the floor of the mill. Duff was last seen on the [793] “rougher” and from five to eight minutes later a thud was heard “like something hit the side of the mill.” Upon investigation, Duff was located on the ground, under the hole in the floor, and apparently was dead when found. Fellow workmen attempted to find tracks or disturbance of dust, which would indicate where he fell from, but were unable to do so. There were some 2x6 stakes in the ground under the mill and Duff was lying across one of them. His jaw was broken on the left side and there was blood on the left side of his face. The runway was 10 to 12 feet above the floor and the floor was 5 or 6 feet above the ground.
*947 The employer had medical evidence, the Coroner of Jasper County, who performed an autopsy, that the cause of death was acute right heart dilation following cardiac enlargement as a result of full, extensive bilateral pulmonary fibrosis (silicosis) and “that the fracture of the jaw would not produce a severe enough amount of trauma to cause the heart to be embarrassed.” There was also evidence that on the morning of his death, and the day before, Duff complained of pains in his arms and chest which the medical evidence showed were symptoms of his heart ailment. At the autopsy, the wall of the ventricle was found to be very thin and soft, indicating marked deterioration and acute dilation. The death certificate gave this as the cause of death. This evidence tended to show that Duff’s heart condition was the cause of his fall.
The Referee of the Division of Workmen’s Compensation found that compensation must be denied. The Industrial Commission reversed the Referee’s finding and awarded compensation. It made the following finding: “We find from all the evidence that the employee, Jess Duff, now deceased, sustained an accident on December 12, 1949, arising out of and in the course of his employment with the St. Louis Mining and Milling Corporation, resulting in his death on the same day; that said employee was found dead or injured in a hole approximately 14 feet below the runway between the rougher and the .screen, a place where his duties required him to be and where he was last seen working.”
The Court of Appeals relied upon the presumption, which we stated in Mershon v. Missouri Public Service Corporation,
However, we also said in the Mershon case “that such presumption is rebuttable”'and it is clear that the Court of Appeals did not so treat it. Instead, it considered this presumption as evidence to be weighed by the triers of the facts as proof of the principal disputed fact and required to be overcome by the employer’s evidence. Thus *948 it was held a question of fact as to whether the presumption or the evidence controverting it was true.
As we recently stated in Micheler v. Krey Packing Co., Mo. Sup.,
As the Court of Appeals stated: ‘ ‘ The burden is on a claimant to show that an employee’s injury resulted from an accident arising out of and in the course of his employment.” (See also Seabaugh’s Dependents v. Garver Lumber Co.,
Claimants rely upon Reynolds v. Freemasons Hall Co., (R.I.)
The award and the judgment affirming it is reversed.
