recommendatians came to naught. The latest Commission of which Sir Hugh was chairman, appointed after the London disaster of December, 1952, has made two reports and it appears that public opinion is now so aroused that their recommendations bid fair to be fully implemented by law. This would have been impossible before 1952. The importance of public opinion in establishing air pollution control is developed further b y G. E. Pendray in "Management aspects of air pollution," especially in t,his country. I t in ariomatic that the demand for rleaner air is growing rapidly everywhere. Management should recognize this trend, take stork of its prahlems, and do whatever is possible to correct them, a t the same time disclosing its plans frankly to the community t,o elicit. understanding and support and guard against unreasonable d r mmds. An crrellont example of the working of these prineiplcs i~ given in B. C. Newbury's paper on the "Sarnia sm7e.v: action without eompulaion." Here all the industries of Sarnia on the e a ~bank t of the St,. Clair River in Canada are united in voluntary support of a survey by the Ontario Research Foundation to establish the facts of ail. pollution in the area. I t is expected t,hat the industries will act as the fa& indieat,e.
due prinaipally~toinadequate knowledge of the pallutant~that are present in t,he atmosphere and t h ~ i reffects on animals and humans. Extensive studies being init,iated by the Public Health Service in Cinrinnsti under the direotion of A. C. Stern are planned to define the problems and arcnmulate the necessary analytical barkground data. Other papers in the Symposium are devoted to such diverse subjects as plant damage, meteorology, an instrument for measuring i n situ the average size of particles suspended in the air, combustion products irom Diesel engines and incinerators, and engineering development including methods of removing the dust and fume from high-temperature stark gases in steel mills, etc. A notable group of eight papers gives the present status of the art of removing sulfur compounds from the effluentgases of many different industries. Of particular interest are the treatment of the stack gases from the great power plants along the Thames in London, and the recovery of hydrogen sulfide from the offgases of oil refineries. Finally four papers from Holland, France, Portugal, and Italy recount some experience8 with air pollution in those countries and indicate the widespread extent of the associated problems. A high light of these papers is the Dutch regulation limiting the %mount of solids that may be eliminated from a chimney t,o (HI50)Z gram/m.J, where H is the stack height in meters. For x stack 100 m. high the permissible concentration would be 4 grams/m.J or 1.6 grain/ca. ft. S o t mare than 2.5 per cent of this dust may exceed 50 microns in diameter. MOYER D. THOMAS
ST*NFORDREBF.*RCH INBT~TUTE R T A N F O ~ C*~lronar* ~.
REVIEW OF CURRENT RESEARCH AND DlRECTORY OF MEMBEA INSTITUTIONS Edited by Renoto Contini, Secretary of the Engineering College Research Council of the Amerioan Society for Engineering Education. Engineering College Research Council, New York, 1955. rii 352 pp. 13 X 22.5 cm. Paper bound. $2.
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DATA on number of projects (7500), number of scientists engaged in these projects (1500), and research expenditures ($75 million) a t the 105 major engineering schools in the United States. A statement of the research policy of each institution is included. An extensive index adds to the value of this compilation.
A346
JOURNAL OF CHEMICAL EDUCATION, AUGUST, 1956
