For Further Reference 



903 



DIRECT SEEDING OF TREES 

 (Page 136) 



McQuilkin, W. E. : Tests of Direct Seed- 

 ing with Pines in the Piedmont Region, 

 Journal of Agricultural Research, volume 

 73, pages 113-136. August 15, 1946. 



Minckler, Leon S., and Downs, Albert A.: 

 Machine and Hand Direct Seeding of 

 Pine and Cedar in the Piedmont, U. S. 

 Forest Service, Southeastern Forest Ex- 

 periment Station Technical Note 67, 10 

 pages, Asheville, N. G. 1946. 



Priaulx, Arthur W. : Direct Seeding Tool, 

 American Forests, volume 52, pages 

 472-473. October 1946. 



Schopmeyer, G. S., and Helmers, Austin 

 E. : Seeding as a Means of Reforesta- 

 tion in the Northern Rocky Mountain 

 Region, U. S. D. A. Circular 722, 31 

 pages. 1947. 



Shirley, Hardy L. : Direct Seeding in the 

 Lake States, Journal of Forestry, volume 

 35, pages 379-387. April 1937. 



Smith, C. F., and Aldous, S. E.: The In- 

 fluence of Mammals and Birds in Re- 

 tarding Artificial and Natural Reseeding 

 of Coniferous Forests in the United 

 States, Journal of Forestry, volume 45, 

 pages 361-369. May 1947. 



Stoeckeler, J. H., and Sump, A. W. : Suc- 

 cessful Direct Seeding of Northern Coni- 

 fers on Shallow-Water-Table Areas, 

 Journal of Forestry, volume 38, pages 

 572-577. July 1940. 



PINE BREEDING, UNITED STATES 



(Page 147) 



Richens, R. H. : Forest Tree Breeding and 

 Genetics, Imperial Agricultural Bureaux 

 Joint Publication 8, 79 pages, London. 

 1945. 



Riker, A. J., Kouba, T. F., Brener, W. H., 

 and Byam, L. E.: White Pine Selec- 

 tions Tested for Resistance to Blister Rust, 

 Journal of Forestry, volume 41, pages 

 753-760, October 1943. 



Stockwell, Palmer, and Righter, F. I.: 

 Hybrid Forest Trees, Yearbook of Agri- 

 culture 1943-1947 (Science in Farming), 

 pages 465-472. 1947. 



Syrach-Larsen, C. : The Estimation of the 

 Genotype in Forest Trees, Royal Veteri- 

 nary and Agricultural College Yearbook, 

 pages 87-128, Copenhagen, Denmark. 

 1947. 



Tree Breeding at the Institute of Forest 

 Genetics, U. S. D. A. Miscellaneous Pub- 

 lication 659, 14 pages. 1948. 



POPLARS CAN BE BRED 



(Page 153) 



Schreiner, E. J. : Creative Forestry, Paper 

 Industry and Paper World, volume 20, 

 pages 302-307. June 1938. 



Schreiner, E. J. : How Sod Affects Estab- 

 lishment of Hybrid Poplar Plantations, 

 Journal of Forestry, volume 43, pages 

 412-427. June 1945. 



Schreiner, E. J.: Improvement of Forest 

 Trees, Yearbook of Agriculture 1937, 

 pages 1242-1279. 



Schreiner, E. J. : Inhibiting Effect of Sod 

 on the Growth of Hybrid Poplar, U. S. 

 Forest Service, Northeastern Forest Ex- 

 periment Station Occasional Paper 8, 

 10 pages, New Haven, Conn. 1940. 



Schreiner, E. J.: Possibilities of Improv- 

 ing Pulping Characteristics of Pulpwoods 

 by Controlled Hybridization of Forest 

 Trees, Paper Trade Journal, volume 1 00, 

 number 8, pages 105-109. February 21, 



Schreiner, E. J.: The Role of Disease in 

 the Growing of Poplar, Journal of For- 

 estry, volume 29, pages 79-82. January 

 1931. 



Schreiner, E. J.: Silvicultural Methods 

 for Reforestation with Hybrid Poplars, 

 Paper Industry and Paper World, volume 

 19, pages 156-163. May 1937. 



Schreiner, E. J.: Tree Breeding for De- 

 sirable Qualities and Disease Resistance, 

 National Shade Tree Conference Pro- 

 ceedings, volume 22, pages 56-59. 1946. 



Schreiner, E. J.: Two Species of Valsa 

 Causing Disease in Populus, American 

 Journal of Botany, volume 18, pages 

 1-29. January 1931. 



Schreiner, E. J.: Variation Between Two 

 Hybrid Poplars in Susceptibility to the 

 Inhibiting Effect of Grass and Weeds, 

 Journal of Forestry, volume 43, pages 

 669-672. September 1945. 



Schreiner, E. J., and Stout, A. B. : De- 

 scriptions of Ten New Hybrid Poplars, 

 Bulletin 61 of the Torrey Botanical 

 Club, pages 449-460. November 1934. 



Stout, A. B., McKee, R. H., and Schreiner, 

 E. J. : The Breeding of Forest Trees for 

 Pulpwood, Journal of the New York 

 Botanical Garden, volume 28, pages 49 

 63. March 1927. 



Stout, A. B., and Schreiner, E. J. : Hybrids 

 Between the Necklace Cottonwood and 

 the Large-Leaved Aspen, Journal of the 

 New York Botanical Garden, volume 35, 

 pages 140-143. June 1934. 



Stout, A. B., and Schreiner, E. J.: Re- 

 sults of a Project in Hybridizing Poplars, 

 Journal of Heredity, volume 24, pages 

 216-229. June 1933. 



WINDBREAKS AND SHELTERBELTS 



(Page 191) 



Bates, C. G.: The Windbreak as a Farm 

 Asset, U. S. D. A. Farmers' Bulletin 

 1405, 22 pages. 1944. 



Den Uyl, Daniel: Windbreaks for Pro- 

 tecting Muck Soils and Crops, Indiana 

 Agricultural Experiment Station Cir- 

 cular 287, 12 pages. 1943. 



