He can start talking to his men, and, at pleasure, ask the lantern operator (ordinarily the statistician) for any set of curve cards which may be of interest to him at the moment, or which may be referred to at any time during the discussion. The use of curves on a lantern screen in the manner suggested would entirely revolutionize the meetings of the department heads of a business, or the meetings of branch-house sales managers. In sales work especially, the use of the various cards would make it possible to show the whole assembly the recent records made by selling houses in the different parts of the country. The cards for those houses which made particularly good records could be shown, the records could be commended, and conclusions could be drawn as to how the success had been attained. Records for the less successful houses could also

RECORDS FOR THE EXECUTIVE

Fig. 219. Curves on Swinging-leaf Display Fixtures Used for Ready Reference in the Office of Day and Zimmermann, Philadelphia. Each Leaf May Be Easily Carried to a Desk when Additional Points Are to Be Plotted on the Curves

This same type of display fixture is often convenient for showing pin maps of different territories

be shown, with comments by the sales manager giving his own suggestions and asking for suggestions from the other branch-house managers present.

Reflecting lanterns can be used at directors' meetings as soon as corporation directors know how to read curves. By using the lantern, the president could show facts relating to the business much more rapidly, much more clearly, and with greater accuracy than would be possible with any spoken words. The showing of curves would give the directors a chance to check the president's statements so that there would be less danger than at present of a corporation president so choosing his words that, though the words might be strictly truthful in themselves, they would be over-optimistic because they did not tell all the truth.