ADMINISTRATION 89 



seed should be covered in order to give the highest 

 germination ; whether better results are obtained by 

 drill sowing or by broadcast sowing; the best 

 methods of shading, fertilizing, watering, and culti- 

 vating the seed beds; the methods of securing the 

 best root development of the young seedlings; 

 the best time and method of transplanting from the 

 nursery beds to the transplant beds; the best 

 methods for retarding spring growth in seedlings to 

 be used at high altitudes; and other problems of 

 similar nature. 



Forestation Experiments. Experiments in for- 

 estation have, year after year, proven that planting 

 is much safer than direct seeding and ultimately less 

 expensive. For this reason a greater emphasis has 

 been placed upon planting studies. These studies 

 have attempted to show the best season for planting 

 each species; the best methods of planting; the 

 most advantageous classes of stock to use ; and what 

 the most suitable sites are for each species of tree. 



Studies of Forest Influences. Studies on the in- 

 fluence of forests upon stream flow and erosion are 

 attempting to furnish important data for American 

 conditions upon this subject. At the Wagon 

 Wheel Gap Forest Experiment Station in Colorado 



