SURVEYING PRACTICE 



"Bast 



20 25 1? 30 J2 Jj 



c 



A. B. BLAZE FIVE YEARS AFTER CUT WAS MADE : A, FRONT VIEW 

 SHOWING RIM OF CALLUS ; B, CROSS SECTION 



C. BLAZE TWENTY-THREE YEARS AFTER CUT WAS MADE 



