Boley, W H; Fonnesbeck, Carl ; Lewis, LeRoy E; Brush, Richard . 1972. Engineering Field Notes: Volume 4 Numbers 1 and 2 January-February, 1972. 7271 3801. Washington DC: U.S. Department of Agriculture, Forest Service, Engineering. 19 p.

Topics in this issue include:

• Control That Survey
• Methods of Improving Traffic Counter Reliability
• A Sub—Routine for Use with the Monroe Epic 3000 Programmable Printing Calculator
• Hand—Held Platen for Relative Orientation of Stereomodels

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