Harlan F. Stone,
Niles Bement Pond Company v. United States…
“ Approved standard methods of accounting will ordinarily be regarded as clearly reflecting income. A method of accounting will not, however, be regarded as clearly reflecting income unless all items of gross income and all deductions are treated with reasonable consistency. See section 200 of the statute for definitions of 'paid,' 'paid or accrued,' and 'paid or incurred' * * * in any case in which it is necessary to use an inventory, no accounting in regard to purchases and sales will correctly reflect income except an accrual method. ”
