COMMISSION VI 
DOCUMENTATION OF TECHNICAL LITERATURE# 
by 
DUANE LYON 
Aeronautical Chart & Information Center 
A. ABSTRACT 
This paper describes the author's method of preparing 
document catalogue cards and using them as a subject-matter 
index to the available literature regarding photogrammetry 
and the related arts and sciences. Appendix A of this paper 
contains his subject-matter index which resembles the well 
known Dewey and UDC decimal systems, and Appendix B gives a 
useful alphabetical cross-index. 
B. INTRODUCTION 
The available literature on the subject of photogram- 
metry and the related arts and sciences is so large, and is 
accumulating so rapidly that it is not practical for us to 
read all of this material or to remember all of the informa- 
tion that may eventually possess some unforseen value to us. 
Many of us must be prepared to undertake a wide variety of 
new technical problems upon rather short notice, In order 
to successfully accomplish these unexpected assignments with 
a minimum amount of delay, it is therefore necessary for us 
to be able to make effective use of the available technical 
literature on the subject. 
In order to read all of the published literature regard- 
ing photogrammetry, we would have to master a number of dif- 
ferent languages and then spend most of our working hours 
reading various magazines and books on the subject. In order 
to avoid all this trouble, there are periodicals in many 
fields of scientific endeavor which are devoted to printing 
abstracts. For example, about 16,000 scientists subscribe to 
a monthly bulletin called "Chemical Abstracts." When a chem- 
  
¥ Published with the permission of the Commanding Officer of 
the Aeronautical Chart and Information Center, Saint Louis, 
Missouri. This paper does not necessarily reflect the views 
of the Aeronautical Chart and Information Center.