one o'clock
He had proceeded but a few paces , when he met Mr. Mitchel coming rapidly towards him . Breathing a sigh of relief , he passed , then crossed the street , and with his usual skill readily kept Mr. Mitchel in sight till he entered the Fifth Avenue Hotel . Wilson saw him take his key and go up-stairs , so that he felt that his vigil was over for that night . Looking at his watch he noted that it was just one o'clock . Going into the reading-room he wrote a report of the day 's occurrences and then calling a messenger , sent it to head-quarters addressed to Mr. Barnes . This done he felt entitled to hurry home for a short sleep -- short , because he knew it would be his duty to be on the watch again the next day , and until he received further instructions from Mr. Barnes . Mr. Barnes had immediately after his arrival obtained the requisition papers for which he had telegraphed , and which he found awaiting him .