Forestry.

—Realizing that the lumbering methods in vogue in this country since its earliest settlement are most wasteful and are destructive of the future usefulness of the timbered regions the United States Government has set aside as forest reserves several hundred thousand square miles. A forest crop is like any other crop. It must grow from the seed and at maturity be harvested. Those trees that have reached the point in life where years do not add materially to the lumber content are marked for cutting. So that each year brings a harvest. New trees are planted or allowed to spring up where the old were cut so that there is a continuity. It is estimated that there yet remains some 550,000,000 acres of forest land unsuited for agriculture.

The older lumbering methods meant that a company gained control of a tract of timber land, sometimes they had not purchased it, it was really government owned, and cut and slashed all the trees that were upon it. No attempt was made to utilize any of the tree except the bole; the limbs, containing thousands of cords of good wood, were left with the slash to become the prey later of fierce fires, which often got beyond the bounds of the cutting and destroyed millions of acres of growing timber.[194] At a still earlier day the trees were cut so that they would fall with their tops together, then they were burned in order to clear the land for farming purposes. The only reason settlers did not go to the great prairie lands of the Middle West where such wanton destruction was unnecessary, was the lack of means for rapid transportation, and communication.

Even the loggers and lumbermen were often isolated from all civilization except their own party or neighboring parties of like kind, with no roads but the trails of their own making. The highways of commerce were the streams and rivers to which the logs were rolled or snaked by oxen, mules, or horses, and down which they were floated in the spring when the flow was sufficient to carry them. When they reached the larger rivers they were often bound into rafts and floated hundreds of miles to the mills for sawing, a cheap means of transportation.

As the timber was cut off near the streams it was necessary to go farther back for logs. Then developed the logging railways. Usually narrow gauge lines with small locomotives which brought logs down from the forests to the streams or to other lines of railway. But as yet scientific means of lumbering had not been adopted. Not until the government by making large forest reserves and by insisting that loggers should clean up and burn the slashes in such a manner as not to injure standing timber, and leave the ground in such a condition that new trees of good varieties would spring up to take the places of those cut, did there come any real advancement along these lines.

A MILK TRUCK

Equipped with both Cans and Tank

A LUMBER LOG TRUCK

Used in the Northwest

In order that the better methods of lumbering and forest management could be successfully carried out it became necessary to supply roads of such a character that transportation would not be unduly burdensome. If the trees to be cut were to be selected hither and yon, getting the logs and wood from the tops would be a much more expensive process than the mere rolling of boles to the stream and leaving the slash to decay or burn. The Government, realizing this, is now expending millions of dollars on the forest roads making them usable not only by teams but by trucks and automobiles.

The truck and trailer have rapidly made their way in the logging and lumbering industries. By the use of the trailer and the Government-made good roads the truck is able to haul logs of almost any length down from the logging grounds. Trucks and tractors are utilized in the forests, too, for snaking logs and pulling stumps. In places where the grades are steep or on the interior where the roads have not yet penetrated causeways have been built of timber; these usually being cross-ties, and under trussing across draws, with lengthwise planks for the wheels to run on and side planks or logs to keep the machine on the track. Down this causeway by means of a two-wheeled semi-trailer, immense logs are transported. As they are sometimes very steep, chains on the wheels are necessary to prevent slipping and assist in braking.

The average load that a logging truck and trailer will haul is from 3000 to 5000 feet. Larger loads are hauled over snow on sleds, but when distance and time are considered the truck is claimed to be more efficient. F. W. Fenn states that a lumber camp truck to be efficient “must have maximum traction, ample clearance, and proper service and care and be stout enough and strong enough to stand the severest strains.”[195] He further claims that the truck is replacing the older means of transportation, dragging by horses and oxen, skidding down mountain sides, rafting upon rivers, not because it is cheaper but because the great stands of timber are gradually decreasing and the modern method of cutting only properly developed trees is coming into vogue. “Thus the logging industry has developed from one of independence to almost total dependence upon improved transportation facilities, with its consequent problems and expense.”

The hauling of logs down to the water edge by trucks upon natural earth roads and upon specially prepared skidways is said to be cheaper than the narrow-gauge railways formerly in use in the state of Washington.

One of the types of trailers worked out has four wheels, 44 inches in diameter for the front and 46 for the rear with a 10-inch tread all around. The trailer is fastened to the truck by a long pipe coupling. The most satisfactory trailer, according to Fenn, is the two-wheeled rubber-tired with wheels 40 to 44 inches in diameter. Roads which theoretically require steel tires for ironing out ruts would better be planked or otherwise hard surfaced.

Proper attention and routing will greatly prolong the life of the truck. A longer smoother road is rather to be preferred to a short rough one. The depreciation of the truck is figured on a basis of 100,000 miles as its minimum life.