A DECIMAL CLASSIFICATION FOR FORESTRY LITERATURE 461 



.8484 Salting. 



.8485 Watering. (See also .8495.) 



.8486 Protection from flies. 



.8487 Prevention and treatment of disease. (See also .665.) 



.8488 Lambing and kidding. 



.8489 Shearing of sheep and goats. 



.849 Range improvement. 



.8491 Natural reseeding. 



.8492 Artificial reseeding. 



.8493 Eradication of poisonous and unpalatable plants 



.8494 Drift and division fences. (For engineering features see .636.) 



.8495 Development of stock watering places. (See also .8485.) 



.8496 Control of range destroying rodents. 



.8497 Control of predatory animals. 



.85 Grazing influences. (See also .341 and .91.) 



.851 Forest reproduction. 



.852 Forest fires. 



.853 Erosion and streamflow. 



.854 Landslides and avalanches. 



.855 Water for irrigation and municipal water supply. 



.856 Soil fertiUty. 



.86 Range economics. 



.9 Forest economics. (For forest statistics see individual topics on which 



statistics are desired.) 



.91 Forest influences. (See also .85.) 



.911 Climate. 



.912 Soil. 



.913 Water resources and streamflow. 



.914 Erosion. 



.915 Avalanches. 



.916 Public health. 



.917 Ethics and morals. 



.918 Aesthetics. 



.92 Industrial relation of forests. 



.921 Wood-working. 



.922 Agriculture. 



.923 Railroading. 



.924 Mining. 



.93 Demand for forest products. (See also .453 and .472.) 



.94 Forest resources. Forest conditions. Forest production. (See also 



.97111.) 



.941 United States (aplhabetically by states). (See also .091 and. 161.) 



.942 Foreign countries (alphabetically by countries). (See also .092 and 



.162.) 



.95 Tariff on lumber and forest products. (See also .471.) 



.951 Exports. 



.952 Imports. 



