PEARSON:-RESULTS OF TREATED SLEEPERS. 
PLATE V. 
Photo-Mech. Dept., Thomason College. Roorkee. 
Section of a Powellized “ In ” Dipterocarpus tuherculatus B. G. sleeper, showing 
deterioration of snike hole and cut under rail seat, after being 9 years in the line, indicating the 
necessity of using bearing plates. 
[To face page 24. 
