This is an appeal by special leave from a judgment of the High Court of Australia dismissing an appeal by the present appellants, the Commonwealth of Australia, from a judgment of the Full Court of the Supreme Court of New South Wales which had reversed a judgment of Ferguson J. in their favour.
The question for decision is as to the right of the respondents to the limestone in 56 acres of land at Mount Fairy, New South Wales, and arose in the following manner By a Crown grant dated 12th April 1886 the land had been granted to Thomas Shanahan (the predecessor in title of the respondents) in fee simple, subject to a reservation of all minerals which the land contained In the month of April 1915 the appellants, the Commonwealth of Australia, by notice under the Lands Acquisition Act of the Com- monwealth (No. 13 of 1906), compulsorily acquired the land for the purpose of obtaining material for use in connection with buildings to be erected for the Commonwealth. The respondents claimed £100,000 as compensation for the loss of their interest as tenants in fee of the land (which contains a valuable bed of limestone), and the further sum of £600 as damages for severance; but the appel- lants, who contended that the respondents had no property, or no valuable property, in the limestone, made a statutory offer of 1,200 only in satisfaction of the respondents' claim. The offer was refused, and the respondents commenced this action for compensa- tion.
The trial Judge, Ferguson J., upheld the appellants' conten- tion, and awarded to the respondents the sum of £1,200 only, which was agreed to be the value of the land without the limestone. But on appeal the Full Court (Cullen C.J. and Sly and Gordon JJ.) ordered a new trial, and on further appeal their decision was affirmed, though on somewhat different grounds, by the High Court of Aus- tralia (Griffith C.J. and Rich J., Gavan Duffy J. dissenting). It is against this decision that the present appeal is brought.
In order to make clear the contentions on both sides it is necessary to refer to the terms of the grant and to certain legislation leading up to and following upon it.
By the Crown Lands Alienation Act of 1861 of New South Wales (25 Vict. No. 1) it was enacted that Crown lands (with an exception