LOGGING IN THE DOUGLAS FIR REGION. 115 



The crew, wages, and total daily labor cost are shown in the follow- 

 ing statement : 



Unit. Total. 



1 hook tender $6. 00 $6. 00 



2 rigging slingers 3. 60 7. 20 



2 choker men 3.50 7.00 



1 chaser 3. 40 3. 40 



1 swamper 3.25 3.25 



1 sniper 3.25 3.25 



1 signalman 3.00 3.00 



1 engineer 3. 75 3. 75 



1 fireman ; 2. 75 2. 75 



39. 60 



The wire-rope cost per thousand feet is based on the following 

 assumptions: (1) The main line is 1| inches in diameter and 1,200 

 feet long; the trip line, five-eighths inch in diameter and 2,500 feet 

 long; the straw line, three-eighths inch in diameter and 2,500 feet 

 long; (2) that the main line will handle 4,000,000 feet of timber; 

 the trip line, 8,000,000 feet; and the straw line, 25,000,000 feet; (3) 

 that the selling price of wire rope is 50 per cent off the list price, 

 and that the freight on a set of lines amounts to $13.35. 



The rigging cost per thousand feet includes chockers, tag, and 

 yarding lines, straps, etc. 



The cost of fuel oil is based on the assumption that 5.04 gallons of 

 oil will be burned per thousand feet of output and that the delivery 

 price of oil is $1,10 per barrel (42 gallons). 



The depreciation on the yarding engine includes the depreciation 

 on a standard 12 by 12 inch, compound-geared yarding engine valued 

 at $4,T25, an extended fire box, fair-leaders, water tank, and yarding 

 engine sled. It was assumed that the efficient life of the logging 

 engine is eight years, with a scrap value of 10 per cent of the original 

 cost. It was further assumed that the equipment would be used 25 

 days per month and 8 months per year, or to handle 12,000,000 feet 

 per year. 



The maintenance of the yarding engine includes the cost of the 

 labor and repair parts and materials for the up-keep of a standard 

 12 by 12 inch, compound-geared yarding engine, together with an 

 extended fire box, water tank, straw-line drum, and fair-leaders. 



One month of the salaries of the foreman, scaler, timekeeper, and 

 bookkeeper is charged against the side. 



HIGH-LEAD YARDING. 



High-lead yarding involves no great modification of ground yard- 

 ing; the lead block is simply attached to a spar tree as high as prac- 

 tical from the ground instead of to a stump, so that the hauling line 

 tends to lift the front end of the log from the ground. The introduc- 



