“ At the trial there was testimony that immediately upon petitioners' entry into the waiting room many of the people therein became restless and that some onlookers climbed onto seats to get a better view. Nevertheless, respondent admits these persons moved on when ordered to do so by the police. There was no evidence of violence. The record shows that the petitioners were quiet, orderly, and polite. The trial court said, however, that the mere presence of Negroes in a white waiting room was likely to give rise to a breach of the peace. ”

“ And see Mayor and City Council of Baltimore v. Dawson, 350 U.S. 877, 76 S.Ct. 133, 100 L.Ed. 774 (public beaches) ; Holmes v. City of Atlanta, 350 U.S. 879, 76 S.Ct. 141, 100 L.Ed. 776 (municipal golf courses) ; Gayle v. ”