To you, my children, These lovely flowers I give. Prune ye my vines and fig trees, With care my flowers tend, But keep the pathway open Your home is at the end. from "God's Garden" -- Robert Frost The first Mesopotamian writings on clay tablets included information about plants. Ancient pharmacopoeias recorded...

"The former owner of this book asked your opinion by letter, copying and sending you a portion of the book from which he believed you would be able to read the remainder, but he at that time refused to send the book itself. To its...