Res Obscura Miscellany, Part One

A medical alchemist, or ‘iatrochemist,’ examines a jar of urine in seventeenth-century Holland. Well, I try to avoid posting decontextualized grab-bags of images (one of the drawbacks of Tumblr and its ilk, in my opinion), but I’m on vacation and busy with research, so this week I’m going to take the easy route and do just …