Joseph McKenna, King v. Portland — Opinion of the Court
“ At least, it is not apparent that there is any substantial excess of costs above benefits, nor is there such a disproportionate distribution of the burden as to justify the court in declaring the assessment an arbitrary exaction by the legislature. It is beyond the power of human ingenuity to adopt any plan or mode of assessment that will operate to produce exact uniformity, and all that may be expected is a reasonable approximation to such a standard, and the rule adopted under the charter fulfils that condition as applied to the present controversy. ”
