Introduction; Lisp Data Structures; Primitive Functions; Fundamental Predicates; Logical Connectives and Predicates; List Manipulation; Property List Functions; Function Definition and Evaluation; Atom Manipulation; String Manipulation Functions; Array Manipulation Functions; Output Functions; File Management and Operations; The File Package; Error Handling; The Interlisp Editor; Debugging Facilities; Advising; DWIM: Automatic Error Correction; Conversational Lisp; Lisp User's Packages; The Programmer's Assistant; Masterscope; The Record Package; The History Package; Miscellaneous Functions; The Interlisp Execution Environment; The Interlisp Compiler; References; Index.