[No. 26, October Term, 1938.] Decided November 16th, 1938. Taxation — Mortgage Corporation — What Constitutes. All private corporations are to be assessed for taxes under general laws, unless they are expressly exempt by law. p. 359 Words in a statute which are in common use are to be taken in their commonly understood signification, if there is nothing to indicate that they are intended to express a technical meaning, or that, if effect be given according to their ordinary and familiar sense, the