MOTOR TRUCKS ON" EASTERN FARMS. 33 



Registration and license fees vary considerably in the different 

 States. No attempt was made to determine the exact average of the 

 fees paid by the different men. The amounts used as shown in the 

 table are, however, representative of such fees for the year 1920 in the 

 Eastern States, and include both the registration of the truck and the 

 operator's license. In nearly every instance these amounts are within 

 $5 of the actual fees charged in the different States. 



No charge has been made for taxes, insurance, housing, or labor 

 spent in caring for the truck. However, these items would ordinarily 

 amount to a very small percentage of the total cost. 



The number of miles traveled per year are shown on page 22. The 

 gasoline and oil charges are obtained from Table XVI, and the tire 

 charges from Table XVII. The tire charges for the J-ton, f-ton, and 

 1-ton trucks are for pneumatic tires, while for the 1^-ton, l|-ton, and 

 2-ton trucks the tire charges are for solid tires. 



COST OF HAULING WITH TRUCKS. 



The cost of hauling with a motor truck is determined by the cost 

 of operating the truck, the charge for the driver's time and labor, 

 the size of load hauled, and the percentage of time the truck runs 

 without a load. In Table XXI are given the cost per mile of haul, 

 and the cost per ton-mile of hauling crops with trucks of different 

 sizes. The cost of operating the truck is taken directly from the 

 preceding table. The charge for the driver is obtained by allowing 

 a rate of 50 cents per hour for his time while driving and while load- 

 ing and unloading the truck. The average time required for hauling 

 different materials as given in Tables IV to VII is 0.14 hour per 

 mile of travelfor the \- and f-ton trucks, and 0.15 hour for the 1-, \\- 

 1^-, and 2- ton trucks. 



It is stated on page 13 that these men had return loads for their 

 trucks about 26 per cent of the time; that is, each truck hauls loads 

 both ways on 26 out of every 100 round trips it makes from and to 

 the farm, and runs without a load 74 one-way trips. The cost of 

 operating the truck and the value of the driver's time for these 74 

 trips with no load must be charged to the 126 trips with loads, in 

 order to obtain the actual cost per mile of haul. That is, every 

 126 miles of haul must bear the expense of 200 miles of travel, or 

 every 63 miles of haul must bear the expense of 100 miles of travel. 

 The cost per mile of haul as given in the table is obtained by mul- 

 tiplying the total cost per mile traveled by 100 and dividing the 

 product by 63. 



The cost per ton-mile hauled is determined by dividing the cost 

 per mile hauled by the weight of the load in tons. As shown in Table 

 IV, the average weight of a load of crops hauled with ^-ton trucks is 



