Charles Evans Hughes, National Labor Relations Board v…
“ We have seen that the word 'commerce' is the equivalent of the phrase 'intercourse for the purposes of trade.' Plainly, the incidents leading up to and culminating in the mining of coal do not constitute such intercourse. The employment of men, the fixing of their wages, hours of labor, and working conditions, the bargaining in respect of these things-whether carried on separately or collectively-each and all constitute intercourse for the purposes of production, not of trade. ”
