•  
  •  
 

Document Type

General Interest Article

Abstract

(An invited address delivered on the occasion of the commemoration of the 100th anniversary of the Iowa Academy of Science.)

Materials are essential for the support of human life. At the primitive level they provide food, shelter and protection against the natural elements. At the advanced level of the technological civilization of the 20th century they support the luxuries to which we have become accustomed-and which we insist upon calling our "needs." Today they are essential to our industry, our economy and our national security.

Publication Date

May 1976

Journal Title

Proceedings of the Iowa Academy of Science

Volume

82

Issue

3-4

First Page

153

Last Page

155

Copyright

© Copyright 1976 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

Share

COinS
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.