The lifting line from the mainline drum passes through a block half way up the tree and thence through a free swinging block (C) and back to the tree again. On the second block is a ring to which two one inch lines (D) are attached. These lines pass through the boom stick on rollers (E) about fifteen feet apart. On the ends of these lines hooks are attached. These two lines should be so arranged that the hooks remain parallel to the ground. Two three-quarters inch cables (F) with an eye splice in each end are attached to the hooks. These lines, or chokers, are then wrapped around the log and it is lifted clear of the ground by means of the block hold in the main line. The haulback line (B) from the donkey is slacked and the boom travels over to the truck by means of a line (G) attached from the boom to a dummy log running on a special guy line. A log two feet in diameter and sixteen feet long is wrapped at each end with a cable and fastened to a pulley. The two pulleys and attached dummy log travel up and down the guy line as the boom moves. A line is attached to the boom and runs through a pulley attached to the dummy log and extends back to the boom again. This pulls the boom over above the truck as the dummy log travels down the guy line. The logs are held parallel to the ground above the truck and the truck is run under the boom to the location designated by the head loader. With this system the logs will not drop suddenly on the trucks as the log will fall off while being carried over to the truck if there is any danger of its falling at all. After the log is placed, the boom is pulled back to the landing by the haulback line. This system has worked with success in a number of motor truck operations and is a safer method than loading with tongs because the logs cannot accidentally drop and injure the truck. However, the loading situation should be studied carefully. The most efficient loading device for the particular needs of the operation may be installed as any loss of time in loading seriously affects the output of the operation. Most of the truck loggers unload their logs into water; either into a lake, a river that can be driven, or into tide-water. A few, however, unload directly into the log pond at the mill or at the log yard in case the mill has no log pond. The road is usually planked solid at the unloading ground. A great help in unloading is a dock from six to twelve inches higher on one side than on the other so the logs will roll off the truck easily. The brow-skid should be close to the log bunks and just a little lower than these when the truck is tilted. When unloading into shallow water, such as a small river, six or eight skids a foot and a half in diameter are placed so that they slope from the brow-skid to the water at an angle of forty-five degrees. An illustration of this method of unloading is shown below. The skids are so placed that the unloading ground will not be undermined.