Washington N. Gas Co. v. Johnson , 123 Pa. 576 ( 1889 )
Ottman v. Nixon-Nirdlinger , 301 Pa. 234 ( 1930 )
Goldberg v. Nicola , 319 Pa. 183 ( 1935 )
Lowry v. Atlantic Coal Co. , 272 Pa. 19 ( 1922 )