Trees become a source of instruction and fun in this superior activity and nature study book. Beginning with an activity section startlingly titled ""How to Grow Your Own Trees"" in which there is advice about recognizing, planting, and caring for seedlings in a home-made indoor ""nursery"", the author tells us a lot about leaves, stems, buds, twigs and flowers of familiar trees. The graphic drawings of Fred F. Scherer supply an excellent guide for identification. The first appeal of this book will be in the suggested projects for growing, collecting and preserving specimens, but this is also a sound introduction to the scientific method, encouraging of keen observation as the basis for elementary classification and identification. Invaluable for the classroom nature study groups and alert youngsters who enjoy the out-of-doors.