Lessons on Liebig Cards 

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The Natural History of Termites - as told by Liebig Cards

Collecting cards played an important educational role in the pre-television society. Liebig cards were especially popular, since they covered a wide range of subjects. Card set number 1107, issued in the year 1937, was dedicated to the natural history of termites.

Although not all details of the illustrations hold up to scientific scrutiny, they are a good introduction to the biology of these fascinating insects.