about four in the afternoon
On the evening of the fifteenth day , calculations showed that they were halfway back from the point farthest west , but they still had no knowledge of their distance from the sea , which undoubtedly was to the east , or , possibly , northeast . West River flowed to the north , and all the streams crossed flowed north or northeasterly , how far , it was impossible to say . Two days afterward the scene changed somewhat . There had been little wind during the journey thus far ; but now breezes sprang up for two successive days , at about four in the afternoon , which came from the north . `` I think the sea is not far away . '' `` Why do you think so , Professor ? '' `` Did you notice the warm breezes this evening , and also last night at about the same time ? ''