four o’clock
On the following morning Mr. Coulson received what he termed his mail from America . Locked in his room on the fifth floor of the hotel , he carefully perused the contents of several letters . A little later he rang and ordered his bill . At four o'clock he left the Gare du Nord for London . Like many other great men , Mr. Coulson was not without his weakness . He was brave , shrewd , and far-seeing . He enjoyed excellent health , and he scarcely knew the meaning of the word nerves .