20 



MISC. PUB. 100 3, U.S. DEPT. OF AGRICULTURE 



ZAVITZ, E. J. 491 



Fifty years of reforestation in Ontario. Ontario 

 Dept. Lands and Forests. 1960 (?). 



Intermediate Cutting, Stand Improvement 



General 



FEDKIW, J., and TOHO, J. G. 492 



Economic models for thinning and reproducing even- 

 aged stands. Jour. Forestry 58(1) : 26-34. Jan. 

 1960. 



FEDKIW, J., and TOHO, J. G. 493 



Further comment on "Economic models for thinning 

 and reproducing even-aged stands". Jour. Forestry 

 59(4) : 298-299. Apr. 1961. 



PAUL, B. H. 494 



Early pruning improves lumber grades. South. 

 Lumberman 202(2516) : 29-30, 32. Feb. 1, 1961. 



VON DEICHMANN, V. 495 



Comments on "Economic models for thinning and 

 reproducing even-aged stands". Jour. Forestry 58 

 (12) : 970-974. Dec. 1960. 



Refers to article by J. Fedkiw and J. G. Yoho in 

 Jour. Forestry 58(1) : 26-34. 



Northern United States 



FEDKIW, J., HOPKINS, F. S., and STOUT, 

 N. J. 496 



Economic aspects of growing high quality pine 

 through pruning. Northeast. Logger 8(10) : 16-19, 

 22-23, 39. Apr. 1960. 



GEYER, W. A. 497 



Cost estimation for timber stand improvement with 

 chemicals in central hardwoods. Thesis (M.F.), 

 Purdue Univ. 1962.* 



OWSTON, P. W. 498 



The effect of thinning on an eastern white pine plan- 

 tation in southeastern Michigan. Thesis (M.F.), 

 Univ. Mich. 1962.* 



RYKER, R. A., and MINCKLER, L. S. 499 



Methods and costs of killing hardwood culls. U.S. 

 Forest Serv. Central States Forest Expt. Sta. Tech. 

 Paper 191, 9 pp. 1962. 



Southern United States 



GRANO, C. X. 500 



Does pruning pay off? Forest Farmer 20(12) : 10-11. 

 Aug. 1961. 



Southern Arkansas. 



JONES, E. P. 501 



Wide spacing of slash pine produces early gum and 

 sawtimber yields. U.S. Forest Serv. Southeast. 

 Forest Expt. Sta. Res. Note 169, 2 pp. Nov. 1961. 



PEEVY, F. A. 502 



Controlling southern weed trees with herbicides. 

 Jour. Forestry 58(9) : 708-710. Sept. 1960. 



Includes costs of various herbicidal treatments at 

 Alexandria Research Center, La. 



REYNOLDS, R. R., and STERNITZKE, H. S. 503 



"limber stand improvement opportunities in south- 

 west Arkansas. South. Lumberman 203(2530) : 28, 

 30-31. Sept. 11, 1961. 



Western United States 



DIMOCK, E. J., and HASKELL, H. H. 504 



Veneer grade yield from pruned Douglas-fir. U.S. 

 Forest Serv. Pacific Northwest. Forest and Range 

 Expt. Sta. Res. Paper 48, 15 pp. 1962. 



HARRIS, E. C, and DINGLE, R. W. 505 



Thinning in the Douglas-fir region. Wash. Agr. Expt. 

 Sta. Cir. 385, 30 pp. May 1961. 



WIKSTROM, J. H., and WELLNER, C. A. 506 



The opportunity to thin and prune in the Northern 

 Rocky Mountain and Intermountain regions. U.S. 

 Forest Serv. Intermountain Forest and Range Expt. 

 Sta. Res. Paper 61, 14 pp. 1961. 



WORTHINGTON, N. P. 507 



Cost of thinning 50-year-old Douglas-fir for pulpwood 

 at Voight Creek Experimental Forest. U.S. Forest 

 Serv. Pacific Northwest. Forest and Range Expt. Sta. 

 Res. Note 215, 4 pp. Nov. 1961. 



WORTHINGTON, N. P. 508 



Some observations on yield and early thinning in a 

 douglas-fir plantation. Jour. Forestry 59(5) : 331- 

 334. May 1961. 



WORTHINGTON, N. P., REUKEMA, D. L., and 

 STAEBLER, G. R. 509 



Some effects of thinning on increment in Douglas-fir 

 in western Washington. Jour. Forestry 60(2) : 115- 

 119. Feb. 1962. 



WORTHINGTON, N. P., and STAEBLER, G. R. 510 

 Commercial thinning of Douglas-fir in the Pacific 

 Northwest. U.S. Dept. Agr. Tech. Bui. 1230, 124 pp. 

 1961. 



WORTHINGTON, N. P., and STAEBLER, G. R. 511 

 Theory and practice of commercial thinning in 

 Douglas-fir. Jour. Forestry 59(8): 591-593. Aug. 

 1961. 



Harvest Cutting, Regulation, Rotation, Stocking 



(For material on harvesting treated from the engineer- 

 ing viewpoint, see FOREST INDUSTRY, Timber- 

 Harvesting Industry.) 



General 



BENTLEY, W. R. 512 



An analysis of financial maturity as a tool in timber 

 management. Thesis (M.F.). University of Michi- 

 gan. I960.* 



FERRIER, J. A. 513 



The return on investment from even-aged and 

 uneven-aged management, and clear cutting. Thesis 

 (M.F.). Pennsylvania State University. 1961.* 



GAFFNEY, M. M. 514 



Concepts of financial maturity of timber and other 

 assets. North Carolina State College, Dept. Agr. 

 Econ., A.E. Information Series 62, 105 pp. 1960. 



An evaluation of economic formulas, using mar- 

 ginal analysis. 



KREUTZIXGER, M. 515 



Planning and control of the managed forest including 

 new inventorv control procedure. Fifth World For- 

 estry Congress Proc. 1900 : 414-418. 19G2. 



