These carried supplies and messages. They gathered in the logs that had been scattered by occasional storms. When the coat of salt the water gave them got in the way of the machinery, the boats were docked and washed off with steam. Now, the lake became alive. Three thousand men were at work. At night men worked in the gravel pits by electric light. In the cold of winter and the heat of summer there was no stopping. Steadily the great pathway grew. Each day the pile drivers made hundreds of yards. Each day the pit men loaded hundreds of cars of gravel -sometimes four hundred cars. It was an army at work in a salt desert. Sixteen hundred and eighty tons of fresh water were used each day. All of it was brought many miles by train- some eighty miles, some one hundred and thirty miles. More piles came. All told, 88,256 trees were cut down to make piles for the great trestle. A forest of two square 25