Ready References
Volunteer Stream Monitoring: A Methods Manual
Amateur Science--Strong Tradition, Bright Future
Construction of Prototype Circuits
Breadboard Basics
How to Obtain Aerial Photographs
Vacuum Thermopiles and the Measurement of Radiant Energy
Some Ideas for Getting Involved
Ready
References 
Volunteer Stream Monitoring: A Methods
Manual
Amateur
Science--Strong Tradition, Bright Future
Construction
of Prototype Circuits
How
to Obtain Aerial Photographs