"Frenchmen have beheaded their king, declared there is no God, and are now trying to enforce the metric system!" said a member of the English parliament in the course of an alleged argument against the system. This is a fair sample of the arguments advanced against it. It is not my purpose to make any extended argument in favor of it. taking it for granted thatThe Associationis already, theoretically at least, converted to it. If there are any who are still in doubt upon the subject, I ask them to consider the following resume: The system is recommended: 1, because it is simple; 2, it saves time; a good authority on the subject estimates that its employment would save one year of school life for each child; 3, it is cosmopolitan; 4, it is scientific; 5, it is in use in the United States Coast Survey Service, in