Plaintiff was a passenger on defendant’s train. It consisted of the engine, tender, and nine cars, and left Trenton, Mo., at 10:50 o’clock p. m. It was about forty minutes late, and had gained seven minutes before reaching Clio, Iowa. At that station there was a house track south of the main line, and a passing track north. The former was used to stand cars on when not in use, or to be loaded and unloaded. Trains backed on the latter to allоw others to pass, and in cases of emergency ears were stored thereon. Owing to improvements being made, cars had been stored on the passing track during the three weeks previous, and on this evening some seventy-six cars were there, and-in some way several gravel or ballast cars had run out on the main line to the west. The engineer did not observe these until within two hundred feet, too late to avoid a collision. Instantly he threw the air brake into an emergency, so as to “ give the cars a chance to spread ” and prevent them from telescoping,
The evidence left no doubt but that plaintiff was injured by reason of the derailment of the engine, and this cast the burden of proof on the defendant to show that the collision occurred, notwithstanding thе exercise by it of the highest degree of care consistent with the practical operation of its road. Whittlesey v. Railway,
The difficulty in the proоf, however, furnishes no ground for the rejection of the best evidence attainable in establishing one of the elements for consideration in determining the damages to be allowed — the impairment of the earning power. The rule is well stated in 3 Sutherland on Damages, section 945 : “ Evidence of the loss sustained by the plaintiff in his business in consequence of the injury received is proper, not as furnishing the measure of damages, but to aid the jury in estimating them, and for this purpose the nature of such business, its extent, and the importance of his personal oversight and superintendence in conducting it may be shown.” In Wallace v. Railway,
The question is fully discussed in Heer v. Warren Scharf Asphalt Paving Co.,
