Youngstown Municipal Railway Co. v. Wright

In 17 Corpus Juris, 900, in the paragraph, “Necessity of proof as to amount” it is said:

“Evidence from which the amount may be determined is essential to an award for impairment .or destruction of earning capacity. An award can not be made from mere conjecture or without proper data furnished as evidence, although the evidence need not be clear and undubitable to entitle it to go to the jury, and the law exacts only the kind of proof of which the fact to be proved is susceptible. An award for diminution of prospective earning capacity may be made, altho there is no direct evidence as' to the…