Janet Stemwedel writes:

Yes, she’s holding a bubbling Erlenmeyer flask; clearly this must be the international symbol for woman chemist.

Of course since I’m now a philosopher of science rather than a chemist, one might wonder why I chose to tattoo myself with the international symbol for woman chemist.  I guess there’s a way that tattoos still serve as tribal markings … and since the tribe of chemists is the first professional/disciplinary tribe I joined, I feel like my heart is still there even if my faculty billet is in philosophy.