Page:Scott's Last Expedition, Volume 1.djvu/676

438 This morning the engines were set going again, and shortly after 10 a fresh start was made. At first there were a good many stops, but on the whole the engines seemed to be improving all the time. They are not by any means working up to full power yet, and so the pace is very slow. The weights seem to me a good deal heavier than we bargained for. Day sets his motor going, climbs off the car, and walks alongside with an occasional finger on the throttle. Lashly hasn't yet quite got hold of the nice adjustments of his control levers, but I hope will have done so after a day's practice.

The only alarming incident was the slipping of the chains when Day tried to start on some ice very thinly covered with snow. The starting effort on such heavily laden sledges is very heavy, but I thought the grip of the pattens and studs would have been good enough on any surface. Looking at the place afterwards I found that the studs had grooved the ice.

Now as I write at 12.30 the machines are about a mile out in the South Bay; both can be seen still under weigh, progressing steadily if slowly.

I find myself immensely eager that these tractors should succeed, even though they may not be of great help to our southern advance. A small measure of success will be enough to show their possibilities, their ability to revolutionise Polar transport. Seeing the machines at work to-day, and remembering that every defect so far shown is purely mechanical, it is impossible not to be convinced of their value. But the trifling mechanical defects and lack of experience show the risk of cutting out