Was Mad published by the American Nature Association?
American Nature Association:  It was founded by Arthur Newton Pack and his father, Charles. American Nature Association:  "Nature Magazine" was an "illustrated monthly with popular articles about nature" and later, the "interpreter of the great outdoors." American Nature Association:  A May 1924 review of the organization and its magazine, written by Carroll Lane Fenton and published in "American Midland Naturalist" called the magazine "excellent" with "abundant pictures, admirably printed"; and said it was a "highly worth while publication" that deserves a wide circulation among town and school libraries."
i don't know