L. Frank Baum,
The Magic of Oz — Chapter 21: The College of Athletic Arts
(1919)
“ To enable the students to devote their entire time to athletic exercises, such as boating, foot-ball, and the like, Professor Wogglebug had invented an assortment of Tablets of Learning. One of these tablets, eaten by a scholar after breakfast, would instantly enable him to understand arithmetic or algebra or any other branch of mathematics. Another tablet eaten after lunch gave a student a complete knowledge of geography. Another tablet made it possible for the eater to spell the most difficult words, and still another enabled him to write a beautiful hand. ”
