Equilibrium effects in the adsorption of gas mixtures by various types of activated charcoal ...

Typewritten.

Demonstration of photovoltaic power source in remote applications : lighting, weather data gathering and public demonstration systems : Wildlife Prairie Park, Peoria, Illinois.

"Printed: May 1990."

Screening of pesticides for potential adverse environmental effects in Illinois : laboratory model ecosystem evaluations of twenty-six new pesticides /

"Doc. no. 81/40."

Screening of pesticides and other toxic chemicals for potential adverse environmental effects in Illinois /

"Project no. 90.020."

Bias in the estimates of treatment effects in quasi-experimental evaluations /

Bibliography: leaves 16-17.