Apparently not many of those who have conducted trains have attempted through their advance work to prepare for arbitrary distribution of attendance over the entire period that the exhibit is open. The period from two to five o’clock in the afternoon seems to have been found the most popular by the largest number of those reporting on attendance, with some falling off reported after four o’clock. The period before ten in the morning is agreed upon unanimously as the poorest time to get people out. The experiences reported as to the hourly attendance between ten and four o’clock varies so widely that it would seem to indicate that under the right conditions it should be possible to get people to come throughout this period. Good advance work can fill up many idle hours. A description of methods of advance work to accomplish this is contained in another chapter, but while we are considering the visitors it may be well to look over the groups that could most easily come at the least attractive hours. On a number of trains arrangements were made to have school children attend with their teachers according to a prearranged schedule, usually during the morning hours. This is an especially good plan when the train is on view all day, because the children tell their experiences when they go home at noon and thus help to get their parents to attend in the afternoon. If there are a larger number of school children than can be handled conveniently it is a good idea to limit attendance to the older children, basing the lower age limit on the estimated number of children that can be accommodated. If they do not fill up the train completely during the morning, it is possible to arrange for the attendance of delegations of leading citizens and other representative groups who come in a body to welcome the train when it is opened to the public, or to be personally escorted through it at a given time. This, of course, has news value as well as the advantage of using the morning hours. The Safety First Train of the government at each stop arranged to have such a morning delegation.