For that reason, a wide choice of printed graph paper is offered the draftsman. The use of printed graph paper saves time and is comparatively inexpensive.

2. One type of rectangular coordinate paper, called utility paper, is shown above. It has

52 spaces on the long edge to represent one year by weeks, or 4 years by months. The 36 spaces may be used to represent one month by days, 3 years by months, or one year by months taking every third space.

3. This paper is so spaced that it may be put in the typewriter and the lines of type will

fit into the space; that is, on the standard typewriter there are six lines of type to the inch, and on this utility paper, there are six spaces to the inch.

■ ■I

GRAPHIC PRESENTATION

Educational Exhibition Co., Providence, Rhode Island.

Eugene Dietzgen Co.. New York City (and various other cities).

Keuffel & Esser Co., New York City (and various other cities).

Rubber cement is a "must" in the drafting room and copy room. It does not wrinkle paper and may be used for a temporary joining, as well as for a permanent one.

Transparent materials may be used to great advantage in comparing curves, bars, or other types of graphic charts. The charts are drawn directly on the transparent material. When placed over each other, a clear comparison is possible.

SOURCES OF TRANSPARENT MATERIALS: Celluloid Corporation, Newark, New Jersey. E. I. Dupont De Nemours &> Company, New York City. Eastman Kodak Company, Rochester, New York. Monsanto Chemical Co., St. Louis, Missouri.