four
o'clock
That reminded him of a question he had in mind to ask Roscoe . It was a question Sheridan considered of no present importance , but his wife had suggested it -- though vaguely -- and he had meant to speak to Roscoe about it . However , Roscoe had not come into his father 's office for several days , and when Sheridan had seen his son at home there had been no opportunity . He waited until the greater part of his day 's work was over , toward four o'clock , and then went down to Roscoe 's office , which was on a lower floor . He found several men waiting for business interviews in an outer room of the series Roscoe occupied ; and he supposed that he would find his son busy with others , and that his question would have to be postponed , but when he entered the door marked `` R. C. Sheridan . Private , '' Roscoe was there alone . He was sitting with his back to the door , his feet on a window-sill , and he did not turn as his father opened the door .