Teachers and biological historians will recognize the title of this site, named for famed zoologist and parasitologist Rudolph Leuckart, who produced a series of world-renown teaching illustrations (or "Wandtafeln") between 1877 and 1892. Hosted by the Marine Biological Laboratory at Woods Hole, this site contains 109 of Leuckart's illustrations (wall charts), covering Protozoans through Vertebrates. Though large (files range from 350 to 500K each, and in some systems may exceed a standard 15-inch screen), the charts preserve the artist's attention to detail, and are beautiful as well as instructional. An indirect benefit of these illustrations is that, by examining the details emphasized (and those omitted), one gains insight into the state of scientific knowledge in the late 1800s.