Please do not use without permission. Send us E-Mail. Left image is a scanning electron micrograph of a stem cell, found in bone marrow.
Right image is a scanning electron micrograph of a kidney stone crystal.
Visit Louis C. Herring Laboratory to see more. Left image is a transmission electron micrograph showing muscle filaments. Right image is a scanning electron micrograph showing the compound eye of a fly. More of that fly can be seen at my personal home page . Please do not use without permission.