THE FOREST NURSERY 



319 



This simple board permits of rapid work, and when due care is 

 taken the plants are well set. In 1912 at the Wind River nursery 

 a maximum of 6533 trees per man was pricked out in one day 

 (8 hours) and an average of 5165 trees per day for a period of 10 



FIG. 84. The combined trenching and transplanting board. 



Photograph by U. S. Forest Service 



FIG. 85. Operating the combined trenching and transplanting board on 

 the Columbia National Forest. 



days. As the board rests upon the ground while stringing, the 

 task is very irksome and tiresome. Furthermore, the plants can- 

 not be as well protected from the sun and wind as when a board 

 is used that is placed upon a table or rack while stringing (Fig. 85). 



