The Pamphlet Collection of Sir Robert Stout: Volume 66
Cement
Cement.
Natural-cement stones, or septaria, occur in the lower part of the marine Tertiary series, and in some cases are quite equal in quality to those which are burnt for the manufacture of hydraulic cement in Europe. The cement hitherto used so largely in New Zealand has been imported, but, with the great resources the colony possesses in the raw material for the manufacture, this will probably not be long continued.