Wet Specimens If you’re visiting the Museum and you see an object in a container with fluid, it is one of our approximately 1,300 wet specimens. We have wet specimens from every part of the human body as well as parts that aren’t supposed to be there, such as cysts and tumors. Some of the specimens are original early nineteenth century donations from Dr. Mütter, and some were acquired just a few months ago. Wet specimens require constant monitoring and upkeep. They are fragile and can be easily damaged if the fluid level gets too low. A new exhibit that went up in early 2013 highlights the conservation work we are doing on our wet specimens. It is located in our Worden Gallery.