Samuel Blatchford, Pennsylvania Company v. Miller…
“ Prior to the constitution of 1873, and under the constitutional provisions existing in Pennsylvania before that time, the supreme court of that state had uniformly held that a corporation, with such provisions in its charter as those contained in the charter of the defendant, was liable, in exercising the right of eminent domain, to compensate only for property actually taken, and not for a depreciation of adjacent property. ”
