Tank-cars. No. 13895, Mathieson Alkali Works, Incorporated, et al. v. Baltimore & Ohio Railroad Company et al.; [no. 13895 (sub-no. 1), same v. Buffalo, Rochester & Pittsburgh Railway Company et al.; no. 13895 (sub-no. 2), same v. Erie Railroad Company et al.; decided Dec. 28, 1923; report of commission].