“ To have denied that right would in effect have deprived the plaintiff of its property and have been an intolerable injustice. That the plaintiff owed its corporate existence to Kentucky did not enable Wisconsin to treat its plight with indifference. It was a 'person' within the meaning of both the due process clause and the equal protection clause of the Fourteenth Amendment. ”

“ If the order for examination was legal, it was proper to dismiss the suit in case the order was disobeyed. That there may be cases in which oral examination of a plaintiff in the presence of defendant and by counsel familiar with the matter in issue is essential to an adequate presentation of the facts cannot be doubted. If so, it is within the power of a state to require that a plaintiff shall submit to such preliminary examination some-where. ”

“ Here the statute authorized the imposition, and there was imposed, on the plaintiff a highly burdensome requirement because of its corporate origin-a requirement which under the statute could not be laid on an individual suitor in the same situation. The discrimination was essentially arbitrary. There could be no reason for requiring a corporate resident of Louisville to send its secretary, papers, files, and books to Milwaukee for the purposes of an adversary examination that would not apply equally to an individual resident of Louisville in a like case. ”