Read it through once

Newland Archer, as he mused on these things, had once more turned his eyes toward the Mingott box. He saw that Mrs. Welland and her sister-in-law were facing their semicircle of critics with the Mingottian _aplomb_ which old Catherine had inculcated in all her tribe, and that only May Welland betrayed, by a heightened colour (perhaps due to the knowledge that he was watching her) a sense of the gravity of the situation. As for the cause of the commotion, she sat gracefully in her corner of the box, her eyes fixed on the stage, and revealing, as she leaned forward, a little more shoulder and bosom than New York was accustomed to seeing, at least in ladies who had reasons for wishing to pass unnoticed.