ftp.nice.ch/pub/next/developer/objc/do/genetic_algorithm.s.tar.gz#/GA-Source-1.0

Drill.h
[View Drill.h] 

Drill.m
[View Drill.m] 

These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.