Thanks to the following students who had found useful web sites on Scientific
Scale (Logrithmic scale).

Sayfonh Norvang:

**http://en.wikipedia.org/wiki/Logarithmic_scale**

This is the one linked on the class web. It has many useful info and links.

Paige Petersen:

**http://en.wikipedia.org/wiki/Logarithms#History**

Jennifer Avila:

**http://www-groups.dcs.st-and.ac.uk/~history/Mathematicians/Napier.html**

This is a good site for history in math.

Alex Kowalczyk

** http://www.remanley.clara.net/cajori.pdf**

http://www.du.edu/~jcalvert/tech/slidrul.htm