Physicians, when they wait on us, are very particular to have their prescriptions in Latin. They say it avoids mistakes; but when they are among themselves they do not seem as particular. The Medical and Surgical Reporter says that the root of the Tupelo is very useful in obstetrics, being "the lightest of all woods." Now, the Tupelo is generally supposed to be Nyssa sylvatica, but the root of this tree is a long way from being "the lightest of all woods." The Tupelo is also called"sour gum," and the Liquidambar is the "sweet gum," which has light roots,"and it is not at all unlikely that the Reporter is talking of the Liquidambar when it meant the Nyssa, the "sweet" and not the"sour" gum.