This fall, Manhattan's American Museum of Natural History will showcase a fascinating fragment of its collection of forty-thousand magic lantern slides, all dating from the turn of the previous century, during the Margaret Mead Film and Video Festival. The natural-history museum used to lend these sorts of images to public schools statewide, pre-organized in boxes for what must have been excruciatingly boring lectures on topics ranging from “Useful Trees” to “Minor Industries of New England.” Yawn! But seriously, folks,this image is fantatstic, eh?, and the show promises to be a real treat.