106 BULLETIN 711, U. S. DEPARTMENT OP AGEICULTURE. 



The cost at camp 1 includes the wire rope used in yarding and 

 loading, including the rope used for chokers, tag lines, straps, etc. 

 Straw lines were not used. One and one-eighth-inch rope was used 

 for the main 3^arding lines; one-half-inch rope for the trip lines. 

 Logs were single hauled a maximum distance of about 900 feet. The 

 ground was practically level, quite free of pot holes and down timber, 

 and contained little rocky material. The logs averaged about 550 

 feet in volume, and 10 by 11 inch yarding engines were used. A gin 

 pole and crotch line were used in loading, the motive power being 

 furnished by a drum on the engine. 



The cost at camp 2 includes the wire rope used for the main yard- 

 ing, trip, and main loading lines. It does not include chokers and 

 tag lines used in yarding, and the crotch lines used in loading, which 

 cost $0,045 per thousand feet. One and one-fourth-inch rope was 

 used for the main yarding lines, five-eighths-inch rope for the trip 

 lines, 1^-inch rope for the loading lines. All the timber was single 

 hauled an average maximum distance of about 800 feet. The ground 

 was practically level and contained no rocky material. Not less than 

 two logs were yarded at a trip, sometimes three or four, and occasion- 

 ally as many as five. The yarding engines were driven at practically 

 their highest speed, so that, relatively spealdng, the lines had hard 

 usage. The logs averaged about 600 feet in volume. The yarding 

 engines were 10 by 11 inch, compound-geared. 



The cost at camp 3 includes the wire rope used in yarding and 

 loading, also chokers, tag lines, crotch lines, etc. All timber was 

 yarded direct to the landing at an average maximum distance of 

 about 800 feet. The ground was of mixed topography, being badly 

 broken up as regards minor features. The logs, averaging 1,000 

 feet in volume, were never moved uphill. 



The cost at camp 4 includes the wire rope used for main yarding, 

 trip, and main loading lines. It does not include the cost of rope 

 used for chokers, tag lines, etc., used in yarding, and crotch lines 

 used in loading. The chance, from the standpoint of the ground, 

 was an average one, as the country is not particularly rough or badly 

 broken up. From the standpoint of brush, rotten stumps, and down 

 timber, it was much worse than the average. Part of the timber was 

 double hauled, just how much is not known. The volume of the 

 average log Avas about 675 feet. 



The cost at camp 5 in 1912 includes the wire rope used for main 

 yarding, trip, and main loading lines. It does not include the cost 

 of chokers, tag lines, etc., used in yarding, and crotch lines used in 

 loading, which cost $0,064 per thousand feet. One and one-fourth 

 and, l§-inch rope were used for the main yarding lines ; J-inch rope 

 for the trip lines. The country is mountainous and badly broken 

 up, the slopes being generally steep. Logs were moved both uphill 



