TheHVAC Engineer's Handbookhas a comparative summary of all air conditioning techniques. ThePlant Engineer's Handbookprovides comprehensive coverage of subjects of interest to plant engineers, says the company. This book provides dual units and regulations. The Instrumentation Reference Bookincludes instrumentation systems and technical references. Topics include flow, viscosity, length, strain, level, volume, density, pressure, and temperature.

Dwyer Instruments Inc., P.O. Box 373, Michigan City, IN 46361; 219-879-8000; 219-872-9057 (fax); lit@dwyer-inst.com; www.dwyer-inst.com.

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