LAKE ARROWHEAD – The majestic pines have made the Lake Arrowhead region one of California’s favorite playlands. Today, the familiar sound of the wind whistling through the primeval forests is being replaced with shattering echoes of chain saws cutting up timber from over a thousand acres of damaged trees. Lake Arrowhead is big ecological news. […]
WHEN THE TOPIC of fluoridation comes up, most people laugh at the poor unfortunate people who still think fluoridation is harmful. But most people don’t know about the seriousness of fluoride air pollution. In places like the Bay Area (San Francisco), where the air we breathe is fluoridated, it may not be a good idea […]
It was the first day of the fall term. Mrs. Lucille Davis had already handed out the spelling assignments, but the children were restless. The heat in the classroom was stifling. Even on the shaded porch of the little schoolhouse, in Garrison, Montana, the thermometer registered 98 degrees. As her third-graders fretfully turned to their […]
Excerpts TECHNICAL REPORT 69-7-C14 THERMAL DEGRADATION OF POLYVINYLIDENE FLUORIDE AND POLYVINYL FLUORIDE BY OVEN PYROLYSIS by John T. Stapler William J. Barnes William E. C. Yelland Materials Research Division Project Reference IT024401A329 Series: C&W4-50 July 1968 Clothing and Organic Materials Laboratory U. S. ARMY NATICK LABORATORIES Natick, Massachusetts 01760 FOREWORD This report is based on […]
IN THE BURINING OF PORTLAND CEMENT CLINKER THE FLUORINE IS PARTLY DRIVEN OUT OF THE RAW MATERIAL AND FUEL. IN ORDER TO ELUCIDATE THE QUESTION WHETHER THE FLUORINE IS EMITTED IN GASEOUS FORM WITH THE KILN EXIT GASES OR IS COMBINED IN SOLID FORM IN THE CLINKER OR IN THE DUST, COMPLETE FLUORINE BALANCES FOR […]
Special to The New York Times SAN FRANCISCO, Dec. 3– Dr. Francis A. Arnold Jr., former chief dental officer of the Public Health Service and assistant Surgeon General of the United States, died Friday at the Public Health Service Hospital here. He was 56 years old. Fluoride Innovator Dr. Arnold had retired in September from […]
Virtually all U.S. dentists now agree that the best way to prevent tooth decay is to fluoridate water supplies so that children get the benefits from the time their tooth buds begin to form—only a few weeks after conception. Failing that, many dentists paint stronger fluoride solutions on children’s teeth once or twice a year. […]
In 1949, Antigo, Wis. (present pop. 9,600), became one of the first communities in that state to put fluorides into its water supply in an effort to cut down tooth decay. But anti-fluoridation groups kept up a vigorous campaign, claiming that fluoride, a poison when taken in large doses, had cumulative toxic effects even when […]
Special to The New York Times CHICAGO, May. 14 – Dr. H. Trendley Dean, a pioneer in determining effects of fluoridated water on tooth decay, died yesterday in Marine Hospital. He was 68 years old. Dr. Dean joined the American Dental Association’s research council in 1953 and served as secretary of the council until his […]
Abstract: A procedure is reported for the spectrophotometric determination of fluosilicic acid in commercial hydrofluoric acid. The determination of silicon as (?)a-silicomolybdic acid is carried out directly without previous separation of hydrofluoric acid. Title of Study: Studies in the spectrophotometric determination of silicon in materials decomposed by hydrofluoric acid: Spectrophotometric determination of fluosilicic acid in […]
