Owen J. Roberts, Burnet v. Jergins — Opinion of the Court
“ It was there pointed out that while in one aspect the extent of the exemption must finally depend upon the effect of the tax upon the functions of the government alleged to be affected, still the nature of the governmental agencies and the mode of their Constitution may not be disregarded in passing upon the question of tax exemption. An agency may be so intimately connected with the exercise of a power or the performance of a duty by the government that any taxation of it would be a direct interference with the functions of government itself. ”
