When shipments of stock are received it is frequently impossible to plant the material as rapidly as it is unpacked, and it is often impossible to plant the stock because the beds are not prepared. The placing of stock in temporary nursery rows immediately after it has been unpacked is called "heeling in." In this manner stock may be preserved in its normal condition until such time as it can be transplanted to its permanent location. There are a few important points in connection with the operation of "heeling-in" stock which should be clearly understood. Trees and shrubs, when "heeled-in" over winter, should be leaned to the north so that the low winter sun may not shine directly into the tops nor so readily melt the frozen ground about the stems. Thus they are protected better from freezing and thawing of the ground and from premature starting of the buds in the spring. Nursery stock may be placed in temporary nursery rows, either by keeping the plants tied in original bundles as taken from the packing boxes, or by taking the individual plants from each bundle and heeling them in separately. The latter method is the safer and is the one to be adopted if plants are to remain in these temporary nursery rows for a period longer than ten days or two weeks. When stock is "heeled-in" in bundles, a special effort should be made to get the fine topsoil worked into the air spaces among the roots of the plants in each bundle. Permitting the air to reach the roots in the middle of the bundle because this precaution is not taken, is one of the most frequent sources of injury. The best method to adopt to be certain that fine soil is worked in among the roots is to thoroughly water the plants when they are "heeled-in" and to make sure that the water leaves no roots suspended in air. When individual plants are placed in temporary nursery rows, where they are to remain for a period longer than three or four weeks, they should be spaced not closer than twelve inches, or even farther apart for the larger shrubs, to eliminate injury from crowding as soon as the new growth begins (See Plate VI).