my @masterArray = (
                  ["this", "that", 12563, "something", "else"],
                  ["this", "that", 10, "something", "else"],
                  ["this", "that", 1, "something", "else"],
                  ["this", "that", 125638, "something", "else"],
                  ["this", "that", 300000, "something", "else"],
                   );

subDiscarder(\@masterArray);

#
# AND THEN @masterArray should become:
#

@masterArray = (
                  ["this", "that", 300000, "something", "else"],
                  ["this", "that", 125638, "something", "else"],
                  ["this", "that", 12563, "something", "else"],
                );