I think it is time to make the matter very -clear. There are. first. those children who are really ground down in commercial agricultureand I use every one of those words advisedly. There are the children of migrant workers. who work out in the fields with their parents. who work under -conditions where the question of school hours is largely academic. either by virtue of inadequate school facilities where they are located. or carelessness in enforcing school attendance laws. or convenient "crop vacations" which are arranged on a municipal level to accommodate the situation of children working in the fields. or simply nonenforcement of the law. which is probably the most prevalent condition of all. I think the revelations In the testimony before the Senate Migratory Labor Subcommittee. under the able chairman:ship of the Senator from New Jersey . certainly show and represent a really shocking callousness to the future of those of our children who happen to be unfortunate enough to be -born in this economic framework of being the children of migrant workers. The number of migrant workers is variously estimated. It is almost impossible to come by an exact figure. Estimates range anywhere from 100.000 to 400.000.