Instruction Manual for Pickett & Eckel Deci Log Log Slide Rule


This 32-page booklet was received with 1979.0601.02. Its citation information is: Maurice L. Hartung, How to Use the Deci Log Log Slide Rule (Chicago: Pickett & Eckel, Inc., 1947). Hartung, a University of Chicago professor and consultant to Pickett & Eckel, provided a basic overview of mathematical operations on the slide rule. He then explained placing the decimal point; the inverted scales; scales for squares and cubes, logarithms, and trigonometry; and solving problems using multiple scales. He next described the log log scales in a section that has several diagrams of slide rules.

A pink paper sheet on caring for the slide rule is inside the booklet. A previous owner has written in a few corrections, including an updated population of the United States of 175 million in 1957.

Date Made: 1947

Author: Hartung, Maurice L.

Location: Currently not on view

Place Made: United States: Illinois, Chicago

Subject: Mathematics, Rule, Calculating, Education

See more items in: Medicine and Science: Mathematics, Science & Mathematics, Slide Rules


Exhibition Location:

Credit Line: Gift of Frank M. Graves

Data Source: National Museum of American History

Id Number: 1979.0601.04Accession Number: 1979.0601Catalog Number: 1979.0601.04

Object Name: pamphlet

Physical Description: paper (overall material)Measurements: overall: 21.2 cm x 13.7 cm x .2 cm; 8 11/32 in x 5 13/32 in x 3/32 in


Record Id: nmah_904689

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