USDA Forest Service 

 Research Paper INT-239 

 November 1979 



STATISTICAL ANALYSIS OF BALLOON LOGGING 

 TIME AND MOTION DATA 



William S. Hartsog 

 James Cass 



I NTE RMOUNT A I N FOREST AND RANGE EXPERIMENT STATION 

 Forest Service 

 U.S. Department of Agriculture 

 Ogden, Utah 84401 



