observance, provided that in cases in which the builder satisfies the architect that it is not possible to enter into such contracts for any item of goods, materials, services etc., such items shall be known as items subject to adjustment'."
The specifications included the following items :- " A. Excavator -The general excavation over site will be carried by Proprietor with his own plant. The contractor is to assume that the building site will be handed over to him with a level of 44'-0" throughout (in respect to datum 40'-3" at kerb where shown on site plan).
D. Bricklayer :-All commons and face bricks will be supplied by Proprietors and delivered in a continuous flow to building site when and where required by contractor.
F. Steelwork :-All steel will be supplied by Proprietors and is to be manufactured by contractor to engineers' and architects' details. This refers to the fabricating of all stanchions, together with all footing details, all trusses, roof-trusses, girths, purlins, brackets etc. It further refers to the bending and placing of all reinforcement bars, to be used in all footings, retaining walls and beams and window lintels etc. The respective structural steel will be delivered by Proprietor to contractors or sub-contractor yard, subject that either is within 20 miles from the GPO Sydney with- out charge."
Other items of the specifications, namely, Roofer, Electrician, Glazier and Painter, provided for work to be done and materials to be supplied by the proprietor.
The site had not been excavated by the time specified, and, according to evidence accepted by the trial judge, the respondent continued to press the appellant to make the site avaliable to it. The trial judge accepted the evidence of Mr. J. A. Berriman, the managing director of the respondent, who gave evidence that when he visited the site, about 15th May 1950, it was covered with heavy machinery. The foreman on the site was told to move the machinery to an adjacent vacant area, but when he visited the site subsequently, once or twice a week, nothing appeared to him to have been done. On a visit near the end of July, he noticed that further material had been placed on the adjacent area. He had rung the architect on numerous occasions, complaining of the delay.
The respondent, on 7th June 1950, accepted a tender from Hurll &Douglas Pty. Ltd. for the fabrication of the steel work in connection with the building. The architect was aware of this sub-contract. The respondent entered into a further sub-contract for the bending of the steel, of which the architect was also notified.