36 BULLETIN 387, U. S. DEPARTMENT OE AGRICULTURE. 
known as draggable roads. Each township shall employ a superin- 
tendent of its road system. He has general supervision of all drag- 
ging and repair work. A drag tax of not more than 2 mills is author- 
ized, and dragging may be let to contract. 
It is required by law that not less than 10 per cent nor more than 
15 per cent of the total mileage of main traveled roads in the State 
shall be designated by the boards of county commissioners, subject 
to approval by the department of highways, as a State road system. 
The board of county comniissioners and the county engineer are 
charged with the duty of repairing and dragging the State road 
system. 
An ad valorem tax of one-fourth of 1 mill is collected in the State 
and credited to the State highway construction fund. Each county 
retains its own share in this fund. Counties which make the required 
levy and otherwise comply with the law by having the plans and 
specifications approved by the department of highways, shall be 
entitled to receive all moneys to their credit in the State highway 
construction fund. The county excise board in each county is 
empowered to levy a tax of one-fourth of 1 mill on all property sub- 
ject to an ad valorem tax in the county, the proceeds of which con- 
stitutes the county road construction fund, which is used in the 
construction and maintenance of county highways. 
The fees required for the registration and licensing of motor ve- 
hicles are collected by the department of highways. Ten per cent 
of the proceeds of such fees is paid into the general fund of the State 
and 90 per cent is paid to the treasurers of the respective counties 
on the basis of the amounts collected therein. The county treasurer 
is required to pay to the treasurer of any city of the first .class or 
operating under a charter form of government in such county 25 per 
cent of all fees originally paid by residents of any such city. The 
residue shall be placed to the credit of the county road maintenance 
fund.. 
All able-bodied males between the ages of 21 and 50 years are 
required to work four days on the roads annually or to pay $5. The 
law also provides for the working of State and county convicts on 
the public roads. 
The various townships are authorized to issue highway and bridge 
bonds, provided that the aggregate amount of indebtedness thus 
created shall not exceed 5 per cent of the taxable property in the 
township. Counties are also authorized to issue bridge bonds. 
REVENUES APPLIED TO ROADS AND BRDDGES. 
The total revenues applied to roads and bridges during the calendar 
year 1915 amounted to $2,112,680.80. These revenues included the 
following items: general county and township tax, $1,859,572.09; 
