Okay, let's try this.. The MIT "info-mac" archive.. http://www.info-mac.org/viewforum.php?f=94
There mght be something you can use in the Science and Math sub-folders.
Other than the Apple old software downloads - http://download.info.apple.com/Apple_Support_Area/Apple_Software_Updates/English -North_American/
- and the Macintosh Garden (I think this used to the the Underdogs site) http://macintoshgarden.org/
I don't know of anywhere else to look that's got anything useable.
Perhaps you may try getting in touch with the guy that runs the Headgap site - http://headgap.com/ - He also has older software that may work - when I bought a system from him years ago, I got a pretty nifty tools disk with a wide range of programs.