Tree Planters' Notes Issue 20 (1955)
- Not for the Birds
- An Improved Cylindrical Seed Spot Screen and Setter
- Root-Rolled Seedlings
- A Simple Device for Making Paper Pots
- Protecting Machine Transplanted Trees From White Grubs
- Proposed Safety Rules for the Operation of Mechanical Tree Planters
- Planting Trials with Transpiration Retardants in California
- Tests of a Transpiration Inhibitor
- Planting Stock Dropped by Air
- Seedbed Density Affects Longleaf Pine Survival and Growth
- Issue 20 Full