...between the amount realized from the disposal of the timber and the adjusted depletion basis thereof, shall be considered as though it were a gain or loss, as the case may be, on the sale of the timber. Section 1.631-1 (d) (4) of the Income Tax Regulations provides that for any taxable year...

...the disposal of such coal and the adjusted depletion basis thereof plus the deductions disallowed for the taxable year under section 272, shall be considered as though it were a gain or loss on the sale of such coal. Such owner shall not be entitled to the allowance for percentage depletion...

...the difference between the amount received for such timber and the adjusted depletion basis thereof shall be considered as though It were a gain or loss, as the case may be, upon the sale of such timber. •SEC. 29.117-8. GAIN OK Loss UPON THE CUTTINO AM- DISPOSAL or TIMBBB....

...of such coal or iron ore and the adjusted depletion basis thereof plus the deductions disallowed for the taxable year under section 272 shall be considered...subsection shall not apply to income realized by any owner aa a co-adventurer, partner, or principal in the mining of such coal or iron ore, and the word "owner"...

...of such coal or iron ore and the adjusted depletion basis thereof plus the deductions disallowed for the taxable year under section 272 shall be considered...section 613 with respect to such coal or iron ore. * * * The date of disposal of such coal or iron ore shall be deemed to be the date such coal or iron...

...of such coal or iron ore and the adjusted depletion basis thereof plus the deductions disallowed for the taxable year under section 272 shall be considered...provided in section 613 with respect to such coal or lion ore. This subsection shall not apply to income realized by any owner as a co-adventurer, partner,...

...disposal of such coal * * * and the adjusted depletion basis thereof plus the deductions disallowed for the taxable year under section 272 shall be considered...loss, as the case may be, on the sale of such coal * * *. Such owner shall not be entitled to the allowance for percentage depletion provided in section...

...between the amount realized from the disposal of such timber and the adjusted depletion basis thereof, shall be considered as though it were a gain or loss, as the case may be, on the sale of such timber. In determining the gross income, the adjusted gross income, or the taxable income of the lessee,...

...disallowed for the taxable year under section 272 shall be considered as though It were a gain or loes, as the case may be, on the sale of such coal or iron...to the allowance for percentage depletion provided hi section 613 with respect to such coal or Iron ore. This subsection shall not apply to Income realized...

...between the amount realized from the disposal of such timber and the adjusted depletion basis thereof, shall be considered as though it were a gain or loss, as the case may be, on the sale of such timber. The specific question in the instant case is whether the words "amount realized" as used in...