Forsythe
A descendent of Algol 60, intended to be as uniform and general as possible, while retaining the basic character of its progenitor. Forsythe features higher-order procedures and intersection types.
(ftp://e.ergo.cs.cmu.edu/).
["Preliminary Design of the Programming Language Forsythe", J.C. Reynolds, CMU-CS-88-159, 1988].