116. No work at the bench (9-13) is more important than that relating to the location and production of lines. Carelessness or want of skill in this will always be manifest in the finished work. To the beginner it may seem monotonous, and even hard, to stand at the bench several hours before turning a shaving; but he must understand that a scratch cannot be called a line, and that patience and accuracy are the chief requisites in skillful manipulation.