AVAILABLE ELECTRONICALLY "Some Useful Modula-3 Interfaces" Jim Horning, Bill Kalsow, Paul McJones, Greg Nelson December 25, 1993. 103 pages This manual describes a collection of interfaces defining abstractions that SRC's programmers have found useful over a number of years of experience with Modula-3 and its precursors. We hope the interfaces will be useful as a "starter kit" of abstractions, and as a model for designing and specifying abstractions in Modula-3.