Exhibit 600-1

Section 630, Depletion Problems

Examiners Computations
Tract A Tract B Tract C Combined
Adjusted basis of timber $90,000 $110,000 $280,000 $480,000
Total estimated quantity 9,000M 11,000M 10,000M 30,000M
Depletion unit $10 per M $10 per M $28 per M $16 per M
Quantity cut during 1976 9,500M 11,500M None 21,000M
Depletion claimed (21,000M x $16)
Allowable depletion: $336,000
Tract A - 9,000M x $10 = $90,000
500M overrun - None
Tract B - 11,000M x $10 = $110,000
500M overrun - None

$200,000
$136,000