Advertiser index

Association of Consulting Engineers 220

Bridgestone Tire Co. Ltd 221

Crawley (Refrigeration) Ltd 223

FibroPlast Industries Co. 222

Franklin Hodge Industries 224

International Drinking Water Supply and

Sanitation Decade Directory 226

Newton Chambers Engineering Ltd 219

Robertson Research Engineering Services Ltd 225

Digital Geologging

Now you can choose from the first complete range of totally digital borehole logging equipment for the water industry.

We have surface systems for portable or truck—mounted use and an extensive choice of downhole multifunction probes.

# FIELD PROVEN EQUIPMENT

# DIRECT DIGITAL CARTRIDGE OR 9-TRACK RECORDING

# RUGGED. STABLE PROBES

# MICROPROCESSOR DESIGN MAKES OPERATION SIMPLE