about four o'clock
Many of the elder workers did use it in the mill , receiving extra pay for extra work , when , as sometimes happened , there was extra work to be done . Some of her companions made as much as a dollar a day in this way . But Mrs. Robertson was gifted with good sense , and knew that her child 's young strength must not be overtaxed and thus the development of the future woman be stunted . So Katie came home generally about four o'clock , and had plenty of time to rest , to help her mother about the house , to keep up some of her old school studies , and to read the very valuable and interesting books of which the Sunday-school library was composed . Her mother took her money and kept it for her , hoping thus to have enough for the summer outfit she would so soon need . The child would gladly have done extra work in order to make extra money , she knew so well how much it was needed , but her mother was inexorable , and she was forced to submit . As to Bertie , she never finished her day 's work at all .