will in all probability be soon required for some of them, but
there may be no one actually willing at the moment to buy it at
any price. Still it does not follow that the land has no value.
In my judgment the test of value of land is to be determined,
not by inquiring what price a man desiring to sell could actually
have obtained for it on a given day, i.e, whether there was in
fact on that day a willing buyer, but by inquiring 'What would a
man desiring to buy the land have had to pay for it on that day to
a vendor willing to sell it for a fair price but not desirous to
sell?' It is, no doubt, very difficult to answer such a question, and
any answer must be to some extent conjectural. The necessary
mental process is to put yourself as far as possible in the position
of persons conversant with the subject at the relevant time, and
from that point of view to ascertain what, according to the then
current opinion of land values, a purchaser would have had to
offer for the land to induce such a willing vendor to sell it, or, in
other words, to inquire at what point a desirous purchaser and a
not unwilling vendor would come together." In the same case
my brother Zsaaes expressed an opinion which was adopted by
the Full Court in Commissioner of Land Tax v. Nathan (1),
which is, I think, entirely in accord with the view I expressed,
but amplifying to some extent what I had said. He pointed out
particularly that all potentialities - although he did not use that
word - of the land must be taken into consideration. He said
(2): - * The all important fact . . . is the opinion regarding
the fair price of the land, which a hypothetical prudent purchaser
would entertain, if he desired to purchase it for the most advan-
tageous purpose for which it was adapted. The plaintiff is to be
compensated ; therefore he is to receive the money equivalent
to the loss he has sustained by deprivation of his land, and that
loss, apart from special damage not here claimed, cannot exceed
what such a prudent purchaser would be prepared to give him."
That was not a case of land tax, but in Nathan's Case, which
was, the Court held that substantially the same rule applied.
The theory of the hypothetical purchaser does not therefore
assume the existence of a person actually willing to buy. The
contention for the Commissioner now is that that theory does