. Lumbering in the sugar and yellow pine region of California . Under average working conditions l^-inch mainline and f-inch back line last two full seasons. If the work is light,they should last a season longer. Thus for chutes from 3,000 to4,000 feet in length with two yarders averaging 30,000 each daily,the cable cost is about 13 cents per 1,000. For a chute o\^er a milein length with two bull donkeys and an average daily output of120,000, the cable cost is about 11 cents per 1,000. In order to overcome friction, portions of the chutes having low oradverse grades are greased with so-called
. Lumbering in the sugar and yellow pine region of California . Under average working conditions l^-inch mainline and f-inch back line last two full seasons. If the work is light,they should last a season longer. Thus for chutes from 3,000 to4,000 feet in length with two yarders averaging 30,000 each daily,the cable cost is about 13 cents per 1,000. For a chute o\^er a milein length with two bull donkeys and an average daily output of120,000, the cable cost is about 11 cents per 1,000. In order to overcome friction, portions of the chutes having low oradverse grades are greased with so-called chute grease (crude petro-leum). The brand commonly used is sold at 2| cents per poundf. o. b. San Francisco. It usually costs about one-half cent perpound more in the woods. A barrel contains approximately 400pounds and costs about $11 delivered. The amount used dependsupon the amount of unfavorable grades. A chute about 5,000 feetin length, of which about one-quarter is upgrade at not to exceed10 per cent, requires one barrel of grease every three days. The. LUMBERING IN PINE REGION OF CALIFORNIA. 41 average amount hauled daily is 110,000 and the cost for grease about4 cents per 1,000. On the other hand, a chute 4,000 feet long, withan average adverse grade of 21 per cent and one pitch of 60 per cent,requires four-fifths of a barrel daily for an output of 50,000. Thecost is about 14 cents per 1,000. An allowance of 5 cents per 1,000for chute grease is ample for most chute logging in this region. DONKEY ENGINE ROADING. Koading with donkeys on dirt roads is rare, and when used isreally a form of double yarding. It is sometimes employed to reacha body of timber too far away for single yarding but not large enoughto warrant the construction of a spur or chute. A yarder is placedin the timber and a roading engine stationed at the nearest landingto haul the logs from the yarder to the track. The logs are hauledin the same manner as they are yarded, either singly or two
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlumbering, bookyear19
