Computation of wages.
Section 19
SEC. 19. Computation of wages.—The average weekly wages shall be computed in such manner that it shall be the best computation that can be made of the weekly earnings of the laborer during the twelve weeks next preceding his injury; Provided, That if, on account of the shortness of the time during which the laborer was so employed or of the cessation of the employment, it is impracticable to compute the remuneration, consideration may be had of the average weekly wages earned during the last twelve months preceding the injury by a person employed in the same grade and same work by the employer of the injured laborer, or if there is no person so employed, of the average weekly wages earned by a person employed in the same grade in the same kind of employment in the same district or locality.