. Canadian forest industries 1908. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Wire Rope Methods of Logging by Steam—Snakers and Skidders From the Forestry Quarterly—Continued. Nearly every logging proposition presents peculiar difficulties or dif- ferences of its own, not only physical, but due to labor conditions or metbods of general management or procedure; each presents a special engineering problem, and new features or combinations must be incor- porated in a plant suitable for the work. The'suspended system of logging has its limitations
. Canadian forest industries 1908. Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries. Wire Rope Methods of Logging by Steam—Snakers and Skidders From the Forestry Quarterly—Continued. Nearly every logging proposition presents peculiar difficulties or dif- ferences of its own, not only physical, but due to labor conditions or metbods of general management or procedure; each presents a special engineering problem, and new features or combinations must be incor- porated in a plant suitable for the work. The'suspended system of logging has its limitations and suitability to various conditions; the system is, to be sure, a short haul system, its length depending on the beight of the head and tail spars, and the maxi- mum load; practically the working length is 800 to 1,000 feet on ground level, and increasing to a maximum of 1,600 feet in regions of broken topography. As it is operated in the air, it is independent of ground conditions absolutely, and is, therefore, eminently suitable to all rough or broken bottom, to woods with thick and tangled undergrowth or covered with mud or water, or to other conditions rendering the ground impassable. In practice, it reduces the expense for swamping to a negligible amount. As a conveying or carrying system it is especially suited to exploita- tion where small products, like tan bark, pulp wood, cord wood and faggots, are to be gotten out. Under conditions where a snaking system might be used it is often to be chosen; where the timber is small, where the stumpage is heavy, SLACK EOPE SKIDDEBS. Slack rope skidding, as briefly mentioned in speaking of the early development, is not in extensive use in the east and south; in the west it is practically the only system used. The complete skidder for this system varies in its form very much, as does the cableway skidder; it may be merely the bare engine with the necessary blocks, cables and small fittings, or it may be completely portable, on
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