1: Factors of the environment. Biology. 2: Silviculture 3: Work Science (Work Studies). Harvesting of wood: Logging and transport. Forest engineering. 4: Forest Injuries and Protection. 5: Forest mensuration. Increment; Development and structure of stands. Surveying and Mapping. 6: Forest management. Business economics of forestry. Administration and organization of forest enterprises. 7: Marketing of forest products. Economics of forest transport and the wood industries. 8: Forest products and their utilization. 9: Forests and forestry from the national point of view. Social economics of forestry 10: Appendix A. Auxiliary subject numbers. 11: Appendix B. Auxiliary numbers of form and place. 12: Appendix C. Alphabetical Index to domestic subdivisions of 145.7 (Insecta) used at the Commonwealth Forestry Bureau, Oxford 13: Alphabetical Index
