Auckland Gas Company (Limited) v Mayor Councillors and Burgesses of Borough of Grey Lynn - (1906) 25 NZLR 617

"The Municipal Corporations Act, 1900," Sections 223 and 246 — Extension of Gas-mains to Road District — Conversion of District into Borough — Fixture of Permanent Levels — Laying of Pipes not conforming to Fixed Levels — Subsequent Formation of Streets to Permanent Levels — Consequent Alteration of Mains — Cost of Alteration, by whom to be borne.