Certain questions involved in this case were certified by this court to the Supreme Court, and the latter court, in answer thereto, ruled substantially as set forth in the. 1st and 2d headnotes, supra. For an elaboration of these notes see the full opinion of the Supreme Court in Groves v. Bibb Sewer Pipe Co., 149 Ga. 542 (101 S. E. 190).

Judgment reversed.