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This guide offers teachers and senior high school students the simple facts of how he can make a difference in the operation of the two-party system in the United States at the precinct level. It also attempts to show that students, teachers, the school curriculum, and our American political structure definitely need large numbers of high school students working in the election process. The handbook suggests many specific activities to implement such a plan. Moreover, it attempts to demonstrate that these plans are practical by relating the specific projects participated in by the Des Moines East High School students in a span stretching more than two decades. Finally, a section is devoted to listing names of people who have worked with youth through the school in political work. All this is discussed in an attempt to help anyone interested in instituting a political action program by providing answers for those who might be apprehensive about moving into such a program. (FDI)

The physical properties of the top soil vary greatly within short distances. Therefore, to obtain a representative average, it should be necessary to measure soil shear strength at a great number of sites, scattered over the plot. A measuring device that suits this purpose should preferably be portable and easy to dismantle. There should be no contact between the surrounding soil and the outer wall of the shear head in order to avoid soil-metal friction. Moreover, soil disturb­ ance in forcing the shear head into the soil should be avoided. From experience with Sohne's standard laboratory shear apparatus1'3 it appeared that a cylindrical shear head with radial fins gives reliable results. Therefore, this principle was adopted in the construction of the apparatus described below. According to Coulomb in«« = c + p tan