752 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



and Irrigation P^xposition, from November 19 to December 2, 1910. 

 The exhibits attracted so much attention at those expositions that 

 various raih'oad companies applied to the oilice for the privilege of 

 installing them on cars where they could be shown at the principal 

 towns along their lines. 



An arrangement was made with the Pennsylvania Railroad, the 

 State highway department of Pennsylvania, and the Pennsylvania 

 State College to cooperate with the office in operating a road-im- 

 provement train throughout the State of Pennsylvania. The train 

 consisted of an exhibit car, which contained not only the models re- 

 ferred to above, but also a large number of enlarged photographs, 

 illustrating various features of tjie road subject, and a set of pictures 

 furnished by the Pennsylvania highway department. 



A lecture car was provided in which stereopticon lectures were 

 given during the day and evening at each stopping place by repre- 

 sentatives of this office, of the State highway department, and of the 

 State college. Two other cars were provided with exhibits consisting 

 of full-size road-building machinery, including crushers, elevators 

 and bins, and a number of homemade devices, such as split-log drags 

 and concrete rollers. 



The train started out on January 25 from Harrisburg, and com- 

 pleted its itinerary at State College on March 28. During that time, 

 it stopped at 165 places, where the exhibits were displayed and 174 

 lectures were delivered. The success of this project is shown by the 

 fact that approximately 53,000 people attended the lectures and 

 examined the exhibits. In many places, the crowds w^ere so large 

 that the lectures were repeated. At other places, where the car would 

 not accommodate the audiences, the meetings were held in court- 

 houses, opera houses, etc. 



Another train similar to that operated on the Pennsylvania Rail- 

 road was started out over the lines of the Southern Railway on May 

 1, 1911, and did not complete its itinerary before October 28, 1911. 

 Up to the close of the fiscal year, approximately 12,000 people had 

 examined the exhibits and heard the lectures on this train. Lectures 

 were given on the Southern train by representatives of this office, the 

 Southern Railway, and the American Association for Highway Im- 

 provement. 



Negotiations are pending for the operation of similar trains on 

 several of the largest railroad systems of the country, including the 

 Frisco system, the Atlantic Coast Line, and the Nashville, Chatta- 

 nooga & St. Louis Railroad. 



jGi exhibit was prepared during the year for the International 

 Exposition at Turin, Italy, beginning April 30 and closing October 

 31, 1911. This exhibit consisted of photographs and rock samples 

 illustrating the methods of testing road materials in the laboratories 

 of this office, models of the standard types of road construction, such 

 as macadam and bituminous-macadam, and models of various types 

 of machines used in this country in road-building. 



LECTURES, ADDRESSES, AND PAPERS. 



During the year 723 lectures and addresses were delivered in 

 various parts of the country by 22 representatives of the office, as 

 compared with 523 lectures delivered during 1910. The total attend- 



