ATLAS GAS ANALYZERS
of the large unit. Your report was based on a press release describing completion of the first of the six field demonstrations. Averill J. Wiley Technical Director Pulp Manufacturing Research League, Inc. Appleton, Wis. 5491 1
THE N E W INDUSTRY STANDARD FOR AIR POLLUTION M O N I T O R I N G
so2
so2
Specific Colorimetric
a n d Reducing Agents lodometric
Specific Colorimetric
a n d Total Oxidants lodometric
NO Specific Colorimetric
Aldehydes Specific Colorimetric
Specific Colorimetric
DEARSIR: In your March 1969 Current, “Paper makers evaluate portable reverse osmosis unit,” the copy implies that the Pulp Manufacturers Research League, Inc., alone developed the reverse osmosis or industrial kidney process. This implication is not entirely correct. The system, in its entirety, was manufactured and assembled by Havens International in San Diego, Calif. The reverse osmosis modules used are a proprietary product of Havens, and our firm hzs spent more than $4 million and seven years in their development. The people at Pulp Manufacturers Research League have conducted several years of laboratory and pilot-scale work with the modules and furnished the technical and operating data necessary to permit the design and construction of the larger mobile system. Fred B. Leonard Vice President, Marketing Havens International Sari Diego, Calif. 92123 Educators’ vital role
Now approved and recommended by many governmental agencies and private industry, Atlas analyzers are available for use with fixed, mobile and stack installations. Schulze patented chemical methods of analysis. Extremely accurate, best available sensitivity and response speeds. Continuous recording ( o r input to any recorder or telemetry system) Automatic re-calibration and standardization. Automatic water-make-up and reagent handling. Unique in design and easy to operate. Low installed cost. Highly reliable-unattended operation Dual channel models available.
ATLAS ELECTRIC DEUXCES COMPANY 4114 N. RAVENSWOOD AVE., CHICAGO, ILL.. U . S . A . 60613 P H O N E 312-327.4520 C A B L E , ATELDECO Circle No. 11 on Readers’ Service Card
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Environmental Science & Technology
DEARSIR: Time has finally caught up with us and our technological tampering with the environment no longer can be lightly brushed aside. The problems and challenges must be met by those with enough background to enable them to efficiently and broad-mindedly set to work, and this calls for education. I think we would all agree with H. E. Hoelscher, W. R. Turkes, and J. I. Abrams, that “Educators have a vital role in environmental engineering” (ES&T, March, 1969, pages 23540). The need for appropriate training in engineering graduate work has been demonstrated and solutions outlined. I wonder, however, if such educational programs should not also be included in physics and chemistry courses not necessarily leading to an engineering degree, at the undergraduate level. (Continued on page 5 1 0 )
