The teamsters saw its meaning first and turned out in fury, dragging the pipe, which was for the most part buried, to the surface, and cutting it so that the oil would be lost. It was only by stationing an armed guard that they were held in check. A second line of importance, that of Abbott and Harley, suffered even more than that of Van Syckel. The teamsters did more than cut the pipe; they burned the tanks in which oil was stored, laid in wait for employees, threatened with destruction the wells which furnished the oil, and so generally terrorised the country that the governor of the state was called upon in April, 1866, to protect the property and men of the lines. The day of the teamster was over, however, and the more philosophical of them accepted the situation; scores disappeared from the region, and scores more took to drilling. They died hard, and the cutting and plugging of pipe-lines was for years a pastime of the remnant of their race. If the uses to which oil might be put and the methods for manufacturing it had not been well understood when the Drake well was struck, there would have been no such imperious demand as came for the immediate opening of new territory and developing methods of handling and carrying it on a large scale. But men knew already what the oil was good for, and, in a crude way, how to distil it. The process of distillation also was free to all. The essential apparatus was very simple—a cast-iron still, usually surrounded by brickwork, a copper worm, and two tin- or zinc-lined tanks. The still was filled with crude oil, which was subjected to a high enough heat to vapourise it. The vapour passed through a cast-iron goose-neck fitted to the top of the still into the copper worm, which was immersed in water. Here the vapour was condensed and passed into the zinc-lined tank. This product, called a distillate, was treated with chemicals, washed with water, and run off into the tin-lined tank, where it was allowed to settle. Anybody who could get the apparatus could “make oil,” and many men did—badly, of course, to begin with, and with an alarming proportion of waste and explosions and fires, but with experience they learned, and some of the great refineries of the country grew out of these rude beginnings.