View this online catalog of 1127 scanning electron microscope images from the Free University of Brussels. The most recent addition to the categorized index is Cells. Images can be viewed and downloaded for private use. This site is a must for anyone who wants to see close-up images of things, like a leaf stomata, scales of a butterfly wing, or the head of a flea. Some visitors may be glad that many of the insect and arachnid specimens are too small to see with the naked eye.