AS BETWEEN TRAINS AND TRUCKS The most serious drawbacks to a train are that it must stay on a railway siding, is frequently inconvenient to reach, and its location hot and dusty in summer, lacking in open space where crowds can gather comfortably, and, worst of all, is noisy. Still another drawback is that the shape of a car is not adapted to the effective display of exhibits and it is difficult also to handle large numbers of visitors. [Illustration: THE NEW YORK STATE HEALTHMOBILE Carries motion picture equipment for both indoor and outdoor exhibition as well as dispensary equipment for holding clinics.] Even with these awkward handicaps, however, the railroad car has the advantage of greater size as a setting for exhibits and demonstrations. Exhibits and equipment for demonstrating, moreover, may be permanently set up in a train of cars, so that everything is in readiness for visitors at the time when the train reaches its stopping place. But the truck is a place for storing rather than displaying exhibits, which means that each time a program is given, material must be unpacked and set up in tents, in a hall, or out of doors. Good points for the truck are that, roads and weather permitting, the truck campaigner may go wherever and whenever he pleases and stay as long as he likes, independent of the rails and schedules that limit the freedom of a train tour. Even bad roads have not prevented some campaigners from reaching what had seemed to be inaccessible districts. While the trucks have in certain ways greater adaptability to varied conditions than trains, the latter will undoubtedly continue to be employed where its own special uses are of paramount importance and particularly in cases where the railroads may find it possible, as in many instances in the past, to provide transportation free or at a nominal price. The truck, on the other hand, is probably only at the beginning of its usefulness in educational and publicity work. There are still untried possibilities of contriving methods for the carrying of materials especially adapted to a quick display during a short stop in all sorts of places, which, it would seem, might invite to a fascinating degree the inventive genius of those interested in the popular spread of useful information. FOOTNOTES: [1] The following records of tours may prove at least suggestive: A three-car train, which traveled through Pennsylvania for five months in 1918, had running expenses of approximately $325 a week. This included traveling, living expenses, and salaries of three staff members, the initial cost of exhibits and printed matter, and repairs. It did not include the salaries of three additional demonstrators, or the initial cost of rebuilding the interiors of the cars, or any expenses for hauling of the cars.