In choosing a drawing pencil, the depth and width of line desired are among the various

criteria.

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370 I ■

GRAPHIC PRESENTATION

REFERENCES

Arkin. Herbert and Raymond R. Colton. Graphs: How to Make and Use Them. Harper & Brothers. New York City, 1937.

Brinton. Willard C. Graphic Methods for Presenting Facts, McGraw-Hill Book Co.. Inc.. New York City, 1914.

Brown. Theodore H.. Richmond F. Bingham, and V. A. Temnomeroff. Laboratory Handbook of Statistical Methods, McGraw-Hill Book Co., Inc., New York City, 1931.

Haskell. A. C, Graphic Charts in Business, Codex Book Co., Inc., Norwood, Mass., 1928.

Karsten, Karl G., Cliarts and Graphs, Prentice-Hall, Inc., New York City, 1923.

CRAYONS

If you do not have crayons of the desired color on hand, try your nearest art dealer. If you are unable to secure the materials that you want there, write to the manufacturers. They will put you in touch with your nearest dealer.

A wide variety is offered. There are colored pencils, wax crayons, pressed crayons, water crayons, etc. If when using a wax crayon, the color tends to smear, scrape the surface with a razor blade. The excess crayon is thus removed. Lumber crayons may be used for extremely heavy color work. Makers of crayons:

American Crayon Co., Sandusky, Ohio, New York City.

Art Crayon Co., Inc., Brooklyn, N. Y.

Binney &" Smith Co., New York City.

Joseph Dixon Crucible Co., Jersey City, N. J., New York City (and various other cities).

Ea^le Pencil Company, Inc.. New York City