216 A TREATISE ON DREDGES AND DREDGING 



Table II, gives the work done by each of seven dredges for 

 three seasons. Glass of material excavated, total cost, cost per 

 cu.yd., number of days worked, and percentage of actual time work. 

 Time lost by repairs, moving, bad weather, clearing traffic and 

 other delays, amounting to more than one-third of total time 

 worked. 



