one at night
He led them to a room in the building where many large bottles were standing in rows upon shelves . `` These are the Algebra Pills , '' said the Professor , taking down one of the bottles . `` One at night , on retiring , is equal to four hours of study . Here are the Geography Pills -- one at night and one in the morning . In this next bottle are the Latin Pills -- one three times a day . Then we have the Grammar Pills -- one before each meal -- and the Spelling Pills , which are taken whenever needed . '' -LSB- Illustration -RSB- `` Your scholars must have to take a lot of pills , '' remarked Dorothy , thoughtfully .