First editions

What to do with my time off? Well, this afternoon I stopped by the John Martin Rare Book Room. The librarian very graciously pulled a first edition of De humani corporis fabrica off the shelf (and let me browse through it!), as well as pointing out the the exact spot in a first edition of Exercitatio Anatomica de Motu Cordis et Sanguinis in Animalibus where William Harvey first introduces the concept of circulation of the blood (at the beginning of Chapter Eight). It was all quite a treat for a bibliophile like me.