EDITORIAL
Lung Cancer in a Steel City:
A Personal Historical Perspective
  VA Cecilioni; Hamilton, Ontario, Canada ... 101-103

ORIGINAL ARTICLES
Disfiguring, or "White and Strong"?
  John Colquhoun; Auckland, New Zealand ... 104-111

Some Investigations into the "DMF" Measurement of Fluoride Dental Benefit
  John Colquhoun; Auckland, New Zealand ... 111-118

Fluorides in Hair and Urine of Children in the Vicinity of a Phosphate Industry Waste Disposal Site
  W Czarnowski, J Krechniak;
  Gdańsk, Poland ... 119-122

Formation of Sustained-Release Fluoride Matrix Tablets
  KS Aithal, K Nalini, YV Pathan;
  Manipal, India ... 123-128

Exposure to Fluorides in the French Phosphate Fertilizer Industry
  M Hery, F Diebold, G Hubert,
  JM Gerber, JC Limasset;
  Nancy, France ... 129-136

REPORT ON A SYMPOSIUM
Symposium in Southern Poland
  JR Marier; Ottawa,·Ontario, Canada ... 137-138

ABSTRACTS
Incidence of Hip Fractures in Osteoporotic Women Treated with Sodium Fluoride
  BL Riggs, DJ Baylink,
  M Kleerekoper, JM Lane,
  LJ Melton III, PJ Meunier;
  Rochester, MN, USA ... 139

Increased Incidence of Hip Fractures in Osteoporotic Women Treated with Sodium Fluoride
  LR Hedlund, JC Gallagher;
  Omaha, Nebraska, USA ... 139-140

Bone Complications During the Treatment of Osteoporosis with Fluoride
  C Marcelli, E Pansard,
  E Thomas, C· Hérisson, L Simon;
  Monpellier, France ... 140

Microradiographic Study of Bone and Tooth Alterations in Bovine Fluorosis
  C Nyssen-Behets, A Vandersmissen,
  M·Ansay, A Dhem;
  Louvain, Belgium ... 141

Evironmental Contamination by Heavy Metals and Fluoride in the Saeftinge Salt Marsh (The Netherlands) and its Effect on Sheep
  AJ Baars, H van Beek,
  TJ Spierenburg, WG Beeftink,
  J Nieuwenhuize, .JJ Pekelder, J Boom;
  Lelystad, The Netherlands ... 141-142

Effect of Fluoride Ingestion on Dental Fluorosis in Sheep
  GE Milhaud, MA Borba, S Krishnaswamy;
  Maisons-Alfort, France ... 142

Fluoride Content of Water, Dust, Soils and Cereals in the Endemic Dental Fluorosis Area of Khouribga (Morocco)
  Y Haikel, JC Voegel, RM Frank;
  Strasbourg, France ... 143-144

Changes in Oral Health from 1973 to 1982 of 13-15-Year-Old Schoolchildren Residing in Three Different Fluoride Areas in Finland
  K Parviainen, J Ainamo, H Nordling;
  Helsinki, Finland ... 144-145

Effect of a Mouthrinse Containing Calcium Lactate for the Formation and Remineralization of Dental Plaque
  JS van der Hoeven, MJ Schaeken, TJ Creugers;
  Nijmegen, Netherlands ... 146

Influence of Food on Relative Bioavailability of Fluoride in Man from Na₂FPO₃-Containing Tablets for the Treatment of Osteoporosis
  K Trautner;
  Wurzburg, Federal Republic of Germany ... 148-149

Effect of Systemic Fluoride on Rat Molar Morphology. Stereophotogrammetric Analysis
  CJ Creath, JD Eick, EP Hicks;
  Tulsa, Oklahoma, USA ... 149

Analyzing the Fluoridation Controversy: Resources and Structures
  Brian Martin; Wollongong, NSW, Australia ... 150

Comparative Effects of a 4-Year Fluoride Mouthrinse Program on High and Low Caries Forming Grade 1 Children
  JA Disney, RC Graves, JW Stamm,
  HM Bohannan, JR Abernathy;
  Chapel Hill, North Carolina, USA ... 146-147

Investigations on the Relevance of Defluoridated Water and Nutritional Supplements in Fluorosis Endemic Areas in Andhra Pradesh, India
  Kola Rajyalakshmi, NV Ramamohan Rao, Neelam Krishna;
  Hyderabad, India ... 147

Human Plasma Fluoride Levels Following Intake of Dentifrices Containing Aminefluoride or Monofluorophosphate
  K Trautner, J Einwag;
  Wurzburg, Federal Republic of Germany ... 148