Dan Hawkins on Twitter: "It's a good idea to know the names of the harmonics you can get on the bass. Here's a fretboard diagram. This comes from a free ebook on
How To Play Guitar Harmonics | Beginner Guitar HQ
Ashdown PRO-FX Sub Harmonic Generator « Bass Guitar Effect
A Guide to Harmonics on Bass - Part 1: Natural Harmonics - Bass Practice Diary 34 - Johnny Cox Music