Boad Demonstrations. 323 



beyau to pack and in a sliort time was iu fine sliapc. The road since 

 that time has been kept np ^vith tlie drag and today is in excellent con- 

 dition." 



The other demonstration, consisting of a string of five cars — one 

 baggage and four flats — left St. Louis September 11^ over the Frisco 

 railroad for a trip across the State by way of Springfield and Lamar. 

 It w-as under the direction of the State Highway Engineer, the machinery 

 being furnished by manufacturing concerns and transported by the 

 Frisco railroad company. 



The baggage car was filled with exhibits. Sample roads in minia- 

 ture, three feet wide, extended along the center and length of the car. 

 These miniatures showed sections of earth, sand-clay, gravel, rock and 

 bitumen roads. All methods of construction shown w'ere adaptable to 



View "B"' after demonstration worlv. Drained, graded, crowned, rolled, and then 



graveled and rolled. 



Missouri. The inner walls of the car were completely covered with 

 plans, profiles and photographs of roads and bridges in the State. In 

 addition the car contained an exhibit of 100 samples of ^Missouri road 

 building material and also road literature for free distribution. 



One flat car carried a miniature bridge model, 10-foot span, steel 

 riveted structure, designed and detailed in the State Engineer's olfice 

 and made by Charles Leitch of Moberly, Missouri; two sections of re- 

 enforced concrete culverts 21 inches in diameter and two sections 24 

 inches in diameter, furnished liy the St. Joseph Re-enforced Concrete 

 Company of St. Joseph, Missouri ; a full set of collapsible cores, 18 to 40 

 inches, for concrete culvert work, furnished by the Merilet Culvert Core 



