264 MISC. PUBLICATION 3 6 4, U. S. DEPT. OF AGRICULTURE 



Morrison, H. M. (5216) 



how plantations ABE thinned. Canad. Forestry Jour. 12 (8) : 674-677. 

 1916. 



Morse, C. H. (5217) 



thinnings on the cypress hills. Canad. Forest and Outdoors 21 (10) : 

 590. 1925. 



Moyer, M. H. (5218) 



improvement cuttings : their role in American forestry. Jour. Forestry 

 25: 153-156. 1927. 



Mulloy, G. A. (5219) 



a more scientific method of experimental thinnings. Jour. Forestry 27 : 

 582-584. 1929. 



Olmsted, F. E. (5220) 



improvement felling as a financial success. Forester 7 : 85-88. 1901. 



Olmsted, F. L., and Harrison, J. B. (5221) 



observations on the treatment of public plantations, more especially 



RELATING TO THE USE OF THE AXE. 24 pp. Boston. 1889. 



Parker, H. A. (5222) 



thinnings on the cypress hills. Forestry Chron. 3 (2) : 25-28. 1927. 



Petrini, Sven. (5223) 



thinning and increment. Internatl. Cong. Plant Sci. Proc 1 : 779-786, illus. 

 1926. 



Righter, F. I. (5224) 



a more scientific method of experimental thinnings. Jour. Forestry 27: 

 280-281. 1929. 



Bobbins, P. W. (5225) 



A STUDY OF INCREMENT GROWTH AFTER THINNINGS. Mich. Agr. Expt. Sta. 



Quart. Bull. 11 (1) : 30-32. 1928. 



Robertson, W. M. (5226) 



girdling hardwoods to benefit conifers. Forestry Chron. 6 (2) : 114-119. 

 1930. 



Roeser, Jacob, Jr. (5227) 



effect of thinnings in sapling douglas fir in the central rocky mountain 

 region. Jour. Forestry 26: 1006-1015. 1928. 



Rogers, H. C. (5228) 



THINNING A TEN-YEAR-OLD CATALPA GROVE. Ohio Forester 9 (1) I 7-9. 1917. 



Sanford, F. H. (5229) 



siLvicuLTURAL improvement of mackinac island. Mioh. Agr. Col. Forester 

 3:. 12-15. 1918. 



Scovell. E. L. (5230) 



why thin your wooDLOT? N. J. State Agr. Col. Ext. Bull. 78, 4 pp., illus. 

 1930. 



Secrest, Edmund. (5231) 



treatment of artificial tree plantations. Ohio Agr. Expt. Sta. Circ. 110, 

 21 pp., illus. 1911. 



Society of American Foresters, New England Section. (5232) 



report of the "committee on the improvement of composition of stands 



WITH SPECIAL REFERENCE TO RELEASE CUTTINGS." 8 pp. Petersham, MaSS. 



1930. 

 Spaeth, J. N. (5233) 



NOTES ON RELEASE OF WHITE PINE IN HARVARD FOREST, PETERSHAM, MASS. 



Jour. Forestry 20 : 117-121. 1922. 

 (5234) 



TWENTY YEARS GROWTH OF A SPROUT HARDWOOD FOREST IN NEW YORK : A STUDY 

 OF THE EFFECTS OF INTERMEDIATE AND REPRODUCTION CUTTINGS. Cornell Agr. 



Expt. Sta. Bull. 465, 49 pp., illus. 1928. 



