While the animals were being thus attended to, the men were hard at work pitching tents, getting out blankets and such baggage as might be needed, collecting fuel for the camp-fires, fetching water for the cooks, and, if the location of the camp was considered especially dangerous, in digging rifle-pits in which the guards for the night would be posted. All this work was performed by regular details, changed each day, and announced each morning at breakfast-time. Thus, one day Glen would find himself on the detail for pitching headquarter tents, and the next answering the cook's imperative demands for water. Or, provided with a gunny-sack, he might be scouring the immediate neighborhood for a supply of dry buffalo chips, with which to eke out the scanty stock of fire-wood. He always performed these tasks cheerfully and faithfully; not that he liked them, but because he realized their necessity, and saw that all the others, below the rank of assistant engineer, were obliged to do the same things.