Concrete is now in demand in ornamental shapes for buildings and bridges. They may be either constructed in place, or moulded in sections and placed the same as cut stone. Plain cornices or panels are usually constructed in place, and complicated moulding or balusters (Fig 120) are usually made in sections and erected in separate pieces. The moulds may be constructed of wood, metal, or plaster of Paris, or moulded in sand. The operation of casting concrete in sand is similar to that of casting iron. The pattern is made of wood the exact size required. It is then moulded in flasks exactly as done in casting iron. The ingredients for concrete consist of cement and sand or fine crushed stone; the mixture, with a consistence about that of cream, is poured into the mould with the aid of a funnel and a T-pipe. Generally the casting is left in the sand for three or four days, and, after being taken out of the sand, should harden in the air a week or ten days before being placed. Balusters are very often made in this maimer.

Fig. 120. Balustrade.

RESIDENCE FOR F. H. GOODYEAR, ESQ. BUFFALO, N. Y.

Carrere & Hastings, Architects, New York.

For Plan Showing Layout of Grounds See Opposite page.

RESIDENCE FOR F. H. GOODYEAR, ESQ., BUFFALO, N. Y.

Carrere & Hastings, Architects, New York. Plan Showing Layout of Grounds. For Exterior View, See Opposite Page.