XXXVI INTRODUCTION 



districts in 1907, and an experienced forester placed in charge of 

 the seeding and planting operations in each district. Since then 

 there has been marked progress, and each year the results show a 

 higher degree of success. Planting sites are selected with better 

 discrimination; forest tree seeds are collected at a diminished cost; 

 and nursery practice is being placed on a saner and more effective 



In 1914 there were planted on the National Forests 9731 acres 

 at 'an average cost of $10 per acre, and there were seeded 5876 

 acres at an average cost of $4.39 per acre. In July, 1915, there 

 were 34 million trees in the National Forest nurseries. The 

 annual output was from 8 to 10 million. The average cost of 

 transplants was $4.25 per thousand and of seedlings 60 cents per 

 thousand. 



