CONVICT ROAD CAMP, FULTON COUNTY, GEORGIA. 63 
HEARDS FERRY ROAD. 
Clearing and grubbing: Cost. Percent. 
Supervision $7. 70 8. 3 
Teams 20. 71 22. 
Materials 20. 64 21. 9 
Equipment 1. 27 1. 4 
General expense '. 4. 64 4. 9 
Convict labor 39 . 05 41. 5 
Total 94. 01 100. 
Area cleared and grubbed, 2 acres. 
Cost per acre, $47. 
Earth excavation (by road machine) : 
Supervision 7. 24 6. 8 
Teams 42. 02 39. 8 
Equipment 12.99 ' 12.3 
General expense 5. 92 5. 6 
Convict labor 37. 49 35. 5 
Total 105. 66 100. 
Quantity of excavation, 1,667 cubic yards. 
Cost per cubic yard, 6 J cents. 
RECAPITULATION. 
Cost of Heard's Ferry Road work. 
Clearing and grubbing $94. 01 
Earth excavation 105. 66 
Total 199. 67 
In these tables the item " general expense" includes the wages and 
board of foremen on Sundays and holidays, the wages and board of 
the blacksmith, and the wages and board of the free driver when he 
was employed on work of a general nature. 
The total amount of this expense was $632.02, made up as follows: 
GENERAL EXPENSE. 
Supervision $279. 35 
Blacksmith 333. 66 
Free driver 19. 01 
Total 632. 02 
As the only saving which can be made by the use of convict labor 
must be derived from the labor itself, it follows that the kind of work 
best adapted to the employment of convicts is that in which the labor 
cost forms the largest part of the whole cost. To indicate the differ- 
ences between the various kinds of work performed by the experi- 
mental convicts, the column headed "per cent" has been added to 
the cost tables, and the diagrams shown in Plates VIII and IX have 
been prepared. They indicate very clearly that, of the various kinds 
of work performed, clearing and grubbing and excavation are best 
adapted to the employment of prisoners, and that such work as cul- 
