Studies a number of plants and forests around the world and examines how and where they grow, how photosynthesis works, pollination, how certain species of birds and animals help flowers and trees grow, and the various ways in which man uses them.
Describes life in European castles during the Middle Ages, discussing food, recreation, sieges, knight training, armor, weapons, jousts, heraldry, and the Crusades, and also covers other kinds of castles around the world.