Gibson,
J.:—This
is
an
appeal
from
the
decision
of
the
Tax
Appeal
Board
dated
September
24,
1963
in
respect
of
assessments
for
income
tax
made
against
the
appellant
in
the
sum
of
$1,753,200.07
being
respectively
a
tax
in
the
sum
of
$171,271.01
levied
in
respect
of
income
for
the
taxation
year
1958,
a
tax
in
the
sum
of
$222,252.93
levied
in
respect
of
income
for
the
taxation
year
1959
and
a
tax
in
the
sum
of
$1,359,676.13
levied
in
respect
of
income
for
the
taxation
year
1960.
The
appellant
is
a
company
incorporated
under
the
laws
of
the
Province
of
Ontario.
The
appellant
established
a
business
in
the
Beaverlodge
Area
of
Saskatchewan
consisting
of
mining
and
milling
uranium
ores
from
mineral
claims,
producing
uranium
concentrates
and
selling
the
same
to
Eldorado
Mining
and
Refining
Limited.
For
the
36-month
period
ending
February
28,
1959
the
Appellant
was
not
required
to
include
in
computing
its
income
the
income
derived
from
the
operation
of
(its)
mine’’
by
reason
of
the
provisions
of
Section
83(5)
of
the
Income
Tax
Act.
In
order
to
bring
into
operation
its
uranium
mining
and
milling
activities,
the
appellant
raised
$19,500,000
by
way
of
sale
to
the
public
of
debentures
bearing
interest
at
5%.
The
evidence
discloses
that
the
appellant
expended
all
these
monies
prior
to
any
relevant
taxation
year
in
respect
of
which
this
appeal
is
concerned.
Subsequently,
namely
after
March
1,
1956
and
during
the
relevant
taxation
years,
the
appellant
in
its
mining
and
milling
operations
earned
very
substantial
sums
of
money
and
accumulated
large
profits,
but
instead
of
using
these
accumulated
profits
to
pay
off
and
extinguish
all
of
its
liabilities
in
respect
to
its
debenture
debt,
the
appellant
invested
certain
of
the
surplus
funds
derived
from
these
profits
in
short-term
investments
such
as
Dominion
of
Canada
bonds
and
provincial
government
bonds.
On
balance,
these
short-term
investments
did
not
earn
5%.
The
appellant,
in
its
interest
accounting,
netted
the
debenture
interest
payable
on
its
debentures
outstanding
and
the
interest
received
from
these
short-term
investments.
By
co-relating
the
interest
paid
out
and
the
interest
received,
because
the
interest
paid
out
in
all
cases
was
5%
and
the
interest
received
was
less
than
5%,
it
was
inevitable
that
the
net
interest
account
was
less
than
it
otherwise
would
have
been.
The
schedule
attached
to
this
judgment
illustrates
this.
The
appellant
founded
its
appeal
substantially
on
the
evidence
of
its
expert
witness
Mr.
R.
M.
Parkinson,
a
chartered
accountant
of
some
36
years
experience.
The
evidence
of
Mr.
Parkinson
in
brief
was
that
it
was
proper
from
a
commercial
and
business
point
of
view
for
the
appellant,
or
indeed
for
any
business,
to
differentiate
in
its
statement
of
income
and
expenditures
between
what
he
refers
to
as
‘operating
items’’
and
‘‘non-operating
items”.
The
figure
obtained
by
considering
only
operating
items,
this
witness
said,
results
in
arriving
at
a
figure
of
“operating
income’’.
This
is
done
by
first
obtaining
the
figure
of
gross
sales
less
returns,
allowances
etc.,
and
subtracting
from
that
sum
the
cost
of
sales
to
arrive
at
a
figure
for
gross
profit.
From
this
figure
is
then
deducted
selling
expenses
and
general
and
administrative
expenses
from
which
the
figure
of
operating
income
is
obtained.
Then
this
witness
said
it
is
proper
to
consider
the
non-operating
items
in
the
business.
These
non-operating
items
the
witness
said
are
categorized
as
‘‘other
income’’,
and
include
interest
and
dividends
and
miscellaneous
items
on
the
receipt
side
and
also
on
the
disbursement
side;
and
from
which
there
is
computed
the
figure
of
income
before
federal
and
other
taxes.
Then
the
witness
said
that
it
is
proper
to
make
a
computation
of
federal
and
other
taxes
and
subtract
the
figure
so
found
from
the
figure
of
income
above
referred
to,
in
order
to
obtain
the
figure
of
‘‘net
income’’
of
the
business
for
the
fiscal
year.
It
is
the
submission
of
the
appellant
that
if
the
provisions
of
the
Income
Tax
Act
are
considered
in
relation
to
this
approach
to
the
statement
of
income
and
expenditure,
that
the
deductions
from
its
income
hereinafter
referred
are
legally
proper.
It
is
convenient
to
consider
this
appeal
from
the
point
of
view
of
two
periods
of
time,
because
different
provisions
of
the
Income
Tax
Act
are
relevant
to
each.
The
first
period
may
be
referred
to
as
the
exempt
period,
that
is
the
36-month
period
ending
February
28,
1959.
This
is
the
period
during
which
the
appellant’s
income
from
the
operation
of
its
mine
was
exempt
from
taxation
by
reason
of
Section
83(5)
of
the
Income
Tax
Act.
The
second
period
may
be
referred
to
as
the
non-exempt
period
by
which
is
meant
the
period
after
the
36-month
interval
referred
to
in
Section
83(5)
of
the
Income
Tax
Act
had
expired.
In
respect
to
the
first
period,
it
is
the
submission
of
the
Appellant
that
the
income
that
the
company
received
from
its
investments
in
short-term
securities
is
correctly
categorized
as
nonexempt
income
and
that
the
remaining
income
of
the
company
namely,
‘‘that
derived
from
the
operation
of
(its)
mine’’
was
the
exempt
income.
The
submission
of
the
appellant
is
that
by
reason
of
Section
11(1)
(c)
the
appellant
was
entitled
to
deduct
interest
for
the
purpose
of
computing
its
income
from
all
sources
and
that
this
subsection
did
not
require
or
permit
the
appellant
to
relate
separate
portions
of
the
permissible
interest
deduction
to
its
various
sources
of
income;
and
that
the
only
interest
deduction
not
permitted
to
the
appellant
during
the
exempt
period
by
Section
11(1)
(c)
was
to
the
extent
that
interest
expense
for
that
year
“may
reasonably
be
regarded
as
having
been
made
or
incurred
for
the
purpose
of
gaining
or
producing
exempt
income’’
within
the
meaning
of
Section
12(1)
(c)
[sic].
The
appellant
therefore
submits
that
a
determination
of
fact
must
be
made
as
to
what
part
of
the
debenture
interest
may
reasonably
be
considered
a
cost
of
earning
this
non-exempt
income
;
and
such
interest
expense
so
found,
the
appellant
submits,
is
a
permissible
deduction
under
Section
11(1)
(c)
and
is
not
taken
away
by
Section
12(1)(c).
Any
method
of
computing
the
quantum
of
this
sum,
the
appellant
says,
is
legally
correct
so
long
as
it
is
reasonable;
and
it
submits
that
netting
the
interest
account
as
it
did
is
a
reasonable
method.
That
is
the
submission
in
so
far
as
the
first
period
is
concerned.
The
second
period
is
the
non-exempt
period.
The
matter
of
trying
to
allocate
any
expense
of
debenture
interest
under
Section
12(1)
(c)
is
not
in
issue
during
this
period
because
the
deduction
of
debenture
interest
was
allowed
in
full
under
Section
11(1)
(c).
What
is
in
issue
during
this
second
period
is
the
quantum
of
the
depletion
allowance
authorized
by
Section
1201(2)
of
the
Income
Tax
Regulations.
This
regulation
provides
for
a
depletion
allowance
of
3314
%
of
‘‘the
aggregate
of
.
.
.
profits
for
the
taxation
year
reasonably
attributable
to
the
production
of
.
..
industrial
minerals
.
.
.
minus
the
aggregate
amount
of
deduction
provided
by
.
.
.’’
Section
1201(4)
(d).
This
latter
regulation
is
the
deduction
permitted.
under
Section
11(1)
(c)
‘‘in
respect
of
(i)
borrowed
money
used
in
connection
with,
or
used
for
the
purpose
of
acquiring
property
used
in
connection
with,
or
(ii)
an
amount
payable
for
property
used
in
connection
with
.
..
production
of
.
.
.
industrial
minerals
.
.
.’’.
It
is
the
submission
of
the
appellant
that
in
calculating
the
depletion
allowance
under
Section
1201(2)
there
must
be
deducted
from
the
operating
profits
‘‘reasonably
attributable
to
the
production
of
.
.
.
industrial
minerals
.
.
.’’
only
such
part
of
the
appellant’s
interest
expense
on
its
debentures
incurred
during
the
taxation
year
as
is
attributable
to
its
mining
operations
and
not
the
portion
of
such
debenture
interest
as
is
attributable
to
earning
income
on
its
short-term
investments.
In
other
words,
the
appellant
submits
that
the
historical
approach
to
the
purpose
for
which
the
original
debenture
debt
was
incurred
is
not
the
proper
approach
but
instead
the
approach
should
be
on
the
basis
of
an
annual
inquiry
of
the
use
to
which
any
borrowed
monies
are
being
put
in
any
taxation
year
and
that
such
is
a
question
of
fact.
If
such
borrowed
monies
are
used
to
earn
income
from
more
than
one
source,
it
is
the
submission
of
the
appellant
that
any
reasonable
method
of
calculating
the
portion
of
interest
charges
applicable
to
each
separate
source
of
income
is
legally
correct.
The
appellant
submits
that
netting
the
interest
costs
and
interest
expenses
is
such
a
reasonable
method.
The
appellant
further
says
that
the
fact
that
it
employed
surplus
monies
in
earning
income
on
short-term
investments
rather
than
in
paying
off
its
debenture
debt
or
rather
than
leaving
the
money
in
the
bank
without
earning
interest
does
not
destroy
pro
tanto
its
right
to
make
such
a
deduction
from
the
interest
on
its
debentures
from
its
income.
I
accept
Mr.
Parkinson’s
evidence
in
so
far
as
it
describes
a
method
currently
recommended
as
good
practice
and
employed
by
many
accountants
in
determining
the
profit
or
loss
of
a
company
from
its
business
operations
including
miscellaneous
revenues
of
investments
of
surplus
cash.
His
method
no
doubt
is
not
only
good
accounting
practice
but
is
also
acceptable
as
a
method
of
determining
the
company’s
income
for
the
purpose
of
the
Income
Tax
Act
for
a
fiscal
year
(when
the
company
is
taxable
on
its
income
from
all
sources)
in
that
it
is
not
contrary
to
any
particular
statutory
direction.
In
the
matter
under
appeal,
however,
what
is
being
considered
is
not
income
for
the
year
from
all
sources
but
income
from
a
source
other
than
the
company’s
mining
business,
namely,
the
income
from
its
short-term
investments.
Therefore
it
becomes
necessary
as
a
matter
of
accounting
fact
to
consider
solely
the
question
as
to
what
sources
particular
expenses
are
related
to,
and
for
the
purposes
of
the
Income
Tax
Act
to
consider
the
same
in
relation
to
its
relevant
provisions.
It
is
therefore
necessary
firstly
to
resolve
a
question
of
fact.
The
sole
question
of
fact
is
whether
or
not
part
of
the
interest
paid
on
the
debenture
debt
of
the
appellant
was
a
cost
of
earning
the
interest
income
on
its
short-term
investments.
In
my
opinion
on
the
evidence
it
was
not.
There
was
nothing
adduced
in
evidence
through
Mr.
Parkinson
or
any
other
witness
to
prove
this;
indeed
no
connection
between
these
transactions
was
established
at
all.
In
view
of
this
finding,
it
follows,
in
respect
to
both
of
the
said
two
periods,
that
none
of
the
provisions
of
the
Income
Tax
Act,
by
reason
of
which
the
appellant
submits
that
some
deduction
should
be
allowed
in
computing
its
income,
are
relevant.
The
appeal
therefore
fails
and
is
dismissed
with
costs.