Figure 22. A local settler delivering a load of Lodgepole pine cones at the seed extractory, for which he receives 45 cents per bushel. Forest officers receiving them, Arapaho National Forest, Colorado 70 Figure 23. In a forest nursery a trough is often used for sowing seeds in drills. The seed scattered along the sides of the trough rattles into position at the bottom and is more even than when distributed by the ordinary worker at the bottom of the trough. Pike National Forest, Colorado 72 Figure 24. Uncle Sam grows the little trees by the millions. These will soon cover some of the bare hillsides on the National Forests of the West 72 Figure 25. One of the largest Forest Service nurseries where the young trees are given the utmost care before they are large and strong enough to endure the rigorous climate of the National Forests. McCloud Nursery, Shasta National Forest, California 76 Figure 26. A view of seed sowing with a corn planter. San Isabel National Forest, Colorado 78 Figure 27. Sowing seed along contour lines on the slopes. Pike National Forest, Colorado 78 Figure 28. A planting crew at work setting out small trees. The man ahead digs the hole, and the man behind plants the tree. Wasatch National Forest, Utah 82 Figure 29. At the Fort Valley Forest Experiment Station, Coconino National Forest, Arizona. A typical meteorological station. Forest officer measuring precipitation. Note the shelter which contains thermometers and also the electrically equipped instruments to record the direction and velocity of the wind 90 Figure 30. Forest officer ascertaining the amount of evaporation from a free water surface. Fort Valley Forest Experiment Station, Flagstaff, Arizona 90 Figure 31. Forest Ranger with his pack horses traveling over his district. Meadow Creek, foot of Mt. Wilson, Montezuma National Forest, Colorado 102 Figure 32. A plank of Incense cedar affected by a disease known as "pin rot." By cutting the cedar timber when it is mature this can be largely avoided. Lassen National Forest, California. Photo by the author 114 Figure 33. The western pine forests will some day be a great source for naval stores. By distilling the crude resin of the Jeffrey pine a light volatile oil--abietene--is secured which has great healing and curative properties. Lassen National Forest, California. Photo by the author 114