I'm preparing to teach a pen and ink class in the Philadelphia area on Thursday. Yesterday afternoon I gathered my materials, planned some exercises and ideas, and worked on the class handout. This drawing resurfaced, from my first scientific illustration class back in 1996...this was the class where I discovered my calling to that obscure field. It's a piece of redwood bark driftwood, done with a crowquill pen and ink. Crowquills, to the uninitiated, are a very traditional pen nib with a super fine flexible tip, meant to be dipped in ink.