INSPECTION. 127 



INSPECTION. 



Inspection of the work is done by the chiefs of parties and of divisions, 

 and, in special cases, by persons detailed by them for this purpose. 



The accuracy and adequacy of the control are shown by the monthly 

 reports and the held sheets are undergoing constant examination from the 

 chiefs of party and of division. The quality of the sketching is examined 

 on the ground. As far as possible this is done during the pi'ogress of the 

 work, using the held sheets as soon as completed. When this is impracti- 

 cable, it is done during the succeeding field season, using photographs of the 

 original maps. 



