D.—l.

Muck-scraper Slide and Shield used for Rapid Conveyance of Materials from the Working-face.

View of Construction, showing Concrete-pump in Centre Foreground. Note Steel Formwork in Middle Distance and Completed Concrete Lining in Background.

WAIk'orWA fTUNNEL, WHARERATA SECTION, XAIMER-GISBORNE RAILWAY.

A