INDUSTRIES AND COMMERCE--CONTINUED. 
2478. GRUPP, G. W. Diesels in the lumber industry. 
Diesel Power 29(1):36-39. Jan.1951. 291.8 D562 
Includes comparative costs of gasoline and diesel trac- 
tors,and hauling combinations. 
2479. KANTZER, C. J. Short log operations, Pacific 
County, Washington. Wash. Inst. Forest Prod. New Wood- 
Use Ser. C. 12,8 p. July 1951. 99.9 W278N 
Similar information in Brit. Columbia Lumberman 36 
(1):42, 81,88,93-94. Jan.1952. 99.81 B77 
Cost analyses of two operations: portable rubber- 
mounted units, and a two-man crane unit for pulpwood 
logging. 
2480. LAWSON, H. K. Radio communication in the 
timber industries. Timber Prod. Assoc. [Ironwood, 
Mich.] B. 64:20-23. July 1948. 99.9 T482 
Estimates costs of installation and maintenance, 
2481. MCCOLL, B. J. Recent developments in me- 
chanical logging. Pulp & Paper Mag. Canada 51(5):128, 
130-131,134,136,138. Apr.1950. 302.8 P96 
Canadian Pulp & Paper Association Woodlands Sect. 
Index 1076(B-1). 
Includes a chart for pulpwood quantity moved by land 
transport, and hauling distances in eastern Canada, 1948- 
49 
Developments for 1951 discussed , in ibid 52(6):142-145, 
147-150. May 1951. 
2482. MCCRAW, W. E. The logger and road building 
machinery. South. Lumberman 180(2253):74-75. Feb.15, 
1950. 99.81 So82 
Also in Timber Canada 10(10):25-29. June 1950. 
99.81 T487; Timberman 51(7):63,70,72. May 1950. 
99.81 T484; Pulp & Paper Mag. Canada 51(10):171,173- 
174. Sept.1950. 302.8 P96 
2483. MCCRAW, W. E. Machinery developments for 
southern logging operations. (Abs.) Assoc. South. Agr. 
Workers Proc. 49:173. 1952. 4 C82 7 
Includes economic factors determining equipment 
choice. 
2484, NELSON, R. P. The use of forestry radio in the 
South. South. Lumberman 179(2239):37-38. July 15,1949. 
99.81 So82 
Traces historical development, the official assignment 
of channels to forest communications by the U. S. Federal 
Communications Commission, and names the industries 
using the equipment in fire control and logging in the 
South. ne i 
2485. O'HALLORAN, J. Mechanization of pulpwood 
logging operations in eastern Canada. Engin. J. 32:530- 
537. Sept.1949. 290.9 En2 
2486. OLIN, R. W. Complete list of two-way radio 
users in forest industry. Lumberman 77(2):94,96. Feb. 
1950. 99.81 W52 
Supplement, in ibid 77(11):104. Nov.1950. 
British Columbia list, in ibid 77(4):82,112. Apr.1950. 
2487, PEPLER, W. A. E., and MCCOLL, B. J. The 
status of mechanization [in pulpwood logging]. Canad. 
Pulp & Paper Assoc. Woodlands Sect. Annu. Mtg. Proc. 
31:150-154. 1949. 99.9 C166 
Includes comments by others, and further discussion 
p. 193-201, 
Also in Pulp & Paper Mag. Canada 50(6):154,156. May 
1949. 302.8 P96 
2488. POPE, C, L. Another look at [logging] truck 
selection. Lumberman 77(4):50-51,95. Apr.1950. 
99.81 W52 
Cost and performance analysis. 
2489. R, C. A. VICTOR CO., LTD. Forest communi- 
cation systems. Pulp & Paper Mag. Canada 52(11):146; 
148,150,153. Oct.1951. 302.8 P96 
Includes costs of radio communication equipment in 
woods operations. 
2490. SIMMONS, F. C. Lumbering equipment prob- 
lems. Forest Prod. Res. Soc. J. 2(1):52-57. Apr.1952. . 
99.9 F7662J 
Equipment problems in relation to possible increased 
production in the Northeast. 
2491. SURDAM, E. National Forest Industries Com- 
munications. Pacific Logging Cong. Loggers Handb. 12: 
74-75, 1952. 99.76 P112La 
The organization surveyed the use of two-way radio in 
forest operations, 
2492. WEATHERBY, H. Southern U. S. version of 
"peanut picker" seen on [West] Coast. Brit. Columbia 
Lumberman 33(9):74,78. Sept.1949. 99.81 B77 
The Loggers' Dream skidder-loader. 
74 
INDUSTRIES AND COMMERCE--CONTINUED. 
2493. WHY A six wheeler [woods truck]? Pulp & 
Paper Mag. Canada 50(5):170,172. Apr.1949. 302.8 P96 
From International Harvester Co. B. 13, Woods trucks. 
Relation between loads and truck economy. 
Salvage; Relogging 
2494. ALLEN, J. W. Cull log utilization. Wash. Inst. 
Forest Prod. New Wood-Use Ser. C. 21,4 p. Feb.1952. 
99.9 W278N 
Salvaging usable parts of cull logs at the landing. 
2495. ALLEN, J. W. Salvage logging to portable 
mills. Wash. Inst. Forest Prod. New Wood-Use Ser. C. 
15,4 p. Oct.1951. 99.9 W278N 
Also in Brit. Columbia Lumberman 36(5):112,114,116, 
118. May 1952. 99.81 B77 
Cost analysis, Baker-Gardner Mills, Kitsap and Mason 
Counties, Wash. 
2496. BUSH, H. Blowdown timber salvage on Green 
Mountain National Forest, Vermont. N. Y. State Ranger 
Sch. Alumni News 1951:9-13. 1952. 99.9 N487 
2497. CARLSON, R. C. Re-logging for pulpwood. 
Wash. State Forestry Conf. Annu. Mtg. 28:28-31. 1949. 
99.9 W276 
In the Pacific Northwest. 
2498. DE BOER, M. J. Sunken log salvage. Mich. 
Conserv. 19(4):23-26. July/Aug.1950. 279.9 M582 
Legal problems involved in establishing title and right 
to stream use in Michigan. 
2499. MATSON, E,. E., and WRIGHT, N. L. An 
appraisal of a Douglas fir re-logging operation. Timber- 
man 50(1):170-175. Nov.1948. 99.81 T484 
Dwyer Lumber Co., cooperating. 
Value recovery study: Logging costs, milling costs, 
other operation costs, prices, and lumber grade recovery. 
2500. OLSON, D.S. Utilization of cedar slash. Forest 
Prod. Res. Soc. J. 1(1):53-54. Sept.1951. 99.9 F7662J 
Actually the economics of salvage logging combined with 
slash disposal, on a pole operation in Idaho. 
2501. SMITH, R. E. Commercial relogging in British 
Columbia. West. Coast Lumberman 75(6):58-59,126-127. 
June 1948. 99.81 W52 
Chiefly for pulpwood. 
2502. SOWDER, J. E. A Sanitation-salvage cutting in 
ponderosa pine at the Pringle Falls Experimental Forest. 
U. S. Forest Serv. Pacific Nowest. Forest & Range Expt. 
Sta. Res. Paper 2,24 p. Oct.1951. 1.9622 P2R31 
Includes time and cost studies of operations, and dis- 
cusses valuation of the remaining forest. 
2503. ZASADA, Z. A., and FREDERICKSON, F. T. 
Limits of closer utilization of black spruce pulpwood. 
Pulp & Paper Mag. Canada. 49(11):128,130,132,134. Oct. 
1948. 302.8 P96 
U. S. Forest Service Lake States Forest Experiment 
Station, Minnesota Forestry Division, and Minnesota & 
Ontario Paper Co., cooperating. 
Recovery and use of small-diameter logging waste; 
effects on logging costs. 
Felling, Bucking, and Other 
Log- Making Operations 
2504. ARCHER, D. H. Keeping a chain saw busy. 
Conn. Woodlands 12:49-50. Sept.i947. 99.8 C76 
Most efficient crew size and organization. 
2505. AVERY, T. E. A time and cost study of felling, 
limbing and topping pine trees for pulpwood in Duke 
Forest. Durham,1950. 37 p. Ref. 
Thesis (M.F.) - Duke University. 
2506. DEMOISY, R. G. Canadian tree poisoning 
method facilitates bark removal for U. S. firm. Brit. 
Columbia Lumberman 34(8):68,70. Aug.1950. 99.81 B77 
Armstrong Forest Company, Pa., pulpwood operations. 
2507. GEDNEY, D. R., and MCCONKEY, T. W. One- 
man chain saw may save manpower in logging white pine. 
U. S. Forest Serv. Noeast. Forest Expt. Sta. Noeast. Res. 
Notes 2:2-3. May 1951. 1.9522 N2N82 
Massabesic Experimental Forest, Maine. 
2508. HART, A.C. A table of production rates for 
cutting spruce and fir pulpwood. J. Forestry 50:557-558. 
July 1952. 99.8 F768 
A chart developed at the U. S. Forest Service North- 
eastern Forest Experiment Station, enabling the user to 
calculate production time from the volume to be cut 
times the production rate for a given diameter class. 
