パート 1 Abstract:This manual presents user documentation for the ATR Interpreting Telephony Research Laboratories BEHOLDER TOOLBOX package, Part 1. This package is designed to be a comprehensive general-purpose toolbox that supports parallel programming on the Sequent computer. The Part 1 manual presented here consists of new commands, explanations of problems with the Sequent CLiP system, and brief discussions of system timing information and agenda queueing theory. The commands are broken down into four main groups: commands extending the normal sequential Allegro Common Lisp, heap commands, new- flavors commands, and commands extending the parallel features of Lisp. The TOOLBOX commands are explained and grouped by topic in the front. An appendix in the back provides a dictionary listing the commands in alphabetical order.