Skin Sample

This sample of skin was a small hangnail on the side of one of my fingers. I took it off with tweezers and placed it on the slide where I dripped water over it so it would be more easy to see.  The light from the foldscope kit was too dim, so I had to…

Cephalocereus senilis – the Old Man Cactus

This sample was taken type of cactus called the Old Man Opuntia Cactus, which is a furry, slender cactus. Its name comes from the fact that the shaggy coat of long white hairs on the cactus resembles that of an old man.  I collected the sample at the Arizona Garden on campus, which has a…