Grirritu C.J. The matter has been very fully discussed,
and nothing would be gained by reserving our judgment. The
plaintifis are the owners of a wharf at Port Pirie, and the
defendants are a company carrying on the business of coal
carriers from New South Wales to Port Pirie. They carry a
large quantity of coal to that port, and take away from it
cargoes of ores and metals, and it appears that a very large
portion of the coal they carry is for the Broken Hill Proprietary
Co. Ltd. The defendants were anxious to make a contract with
the plaintiffs for the use of the plaintiffs' wharf for discharging
their cargoes. Negotiations took place between the represen-
tatives of the plaintiffs and the defendants with the view of
arranging for berthing the defendants' ships at the plaintiffs'
wharf, except when those ships were engaged in carrying coal
solely for the Broken Hill Proprietary Co., that company's coal
being delivered at its own wharf. In negotiating a contract of
that kind many things must necessarily be taken into considera-
tion, amongst others the price to be paid for the accommodation,
and it appears that the price was discussed on the basis of a
certain rate per ton on all coal landed, After some discussion
the rate was fixed, more or less definitely, at sixpence per ton.
The ordinary price at Port Pirie was ninepence per ton, although
the defendants paid only sixpence to the Broken Hill Proprietary
Co. After negotiations had gone on for some time the plaintiffs'
manager was asked to make an offer in writing to be submitted
to the board of directors of the defendant company, and on 25th
January 1906 the plaintiff' manager wrote to the defendants as
follows : - " I beg to state that I am prepared to find accommoda-
tion for your steamers at our wharf, you to be charged sixpence
(6d.) per ton on all coal and coke landed there, provided you
undertake to do all your business other than that with the
Broken Hill Proprietary Co. with us. I understand your coal
contracts provide for appféximately 50,000 tons exclusive of the
Proprietary Co. Tonnage dues as per printed schedule handed
you to be charged. I undertake to provide a berth for your
steamers at all times on the understanding that reasonable
notice, say two days, be given to our manager at Port Pirie of