ten o'clock
`` Dirt do n't show on me , '' said Cato , with a guffaw . `` I suppose you do wash , now and then , do n't you ? '' `` Yes , sar , sometimes , '' answered Cato equivocally . When Tom had completed his toilet he found that it was but ten o'clock . He accordingly went down-stairs , intending to see a little of the city before dinner . Graham and Vincent had kept quiet during the latter part of the voyage . They had a wholesome fear of Mr. Waterbury , and kept aloof from him and Tom .