EDITORIAL
New Light on the Mechanism by which Fluoride Interferes with Enzyme Action ... 71

ORIGINAL ARTICLES
Effects of NaF on Biochemicai Processes of Isolated Soybean Chloroplasts
  J Giannini, GW Miller, JC Pushnik,
  Logan, Utah ... 72-79

Neighborhood Fluorosis in Western India Part I: Environmental Study
  BS Bhavsar, VK Desai, NR Mehta,
  RT Vashi, KAVR Krishnamachari,
  Surat and Hyderabad, India ... 80-86.

Neighborhood Fluorosis in Western India Part II: Population Study
  BS Bhavsar, VK Desai, NR Mehta,
  RT Vashi, KAVR Krishnamachari,
  Surat and Hyderabad, India ... 86-92

Analytical Recording of Fluoride in Air and Food in the Cottbus District
  S Melde, H Jursch,
  Cottbus, GDR ... 93-95

Variations of Human Alveolar Bone Turnover as a Function of F^– Concentration in the Drinking Water
  A Petrovic, J Stutzmann,
  Strasbourg, France ... 96-104

Effect of Fluoride Effluent on Fry of Caria caria (Hamilton)
  KS Pillai, UH Mane,
  Aurangabad, India ... 104-110

Hyperplastic Nodules of Thyroid Parafollicular Cells (C Cells) in Rats Induced by Prolonged Low Dose Ingestion of NaF
  Isao Okayasu, Mitsuru Tsuchida,
  Fumiyoshi Yanagisawa, Tokyo, Japan ... 111-117

Implication of Glutathione in Endemic Fluorosis
  J Jeji, R. Sharma, SS Jolly,
  S Pamnani, Patiala, India ... 117-119

ABSTRACTS
Epidemiology and Control of Fluorosis in India
  AK Susheela, New Delhi, India ... 120-121

Clinical Effects of Preventive Regimens for Young People in Their Early and Middle Teens in Relation to Previous Experience with Dental Prevention
  SE Hamp, LA Johansson,
  R Karlsson, Linkoping, Sweden ... 122

Telangiectasia in Aluminum Workers: A Follow-up.
  G Theriault, S Gingras, S Provencher,
  Quebec, Canada ... 122-123

Effect of Fluoride on Growth and Acid Production by Streptococcus Mutans in Dental Plaque.
  JS van der Hoeven, HCM Franken,
  Nijmegen, The Netherlands ... 123

Effect of Fluoride, Silicon, and Magnesium on the Mineralizing Capacity of an Inorganic Medium and Stone Formers Urine Tested by a Modified in Vitro Method
  A Anasuya, BS Narasinga Rao,
  Hyderabad, India ... 124-125

Endemic Fluorosis in India: A Challenging National Health Problem.
  SPS Teotia, M Teotia,
  Meerut, India ... 125-127

Fluoride Absorption: The Influence of Gastric Acidity
  GM Whitford, DH Pashley,
  Augusta, Georgia ... 127

The Effect of Dietary Calcium on Fluoride Toxicity in Growing Rats
  JE Harrison, AJW Hitchman, SA Hasany,
  A Hitchman, CS Tam,
  Toronto, Ontario ... 128

ADDENDUM AND CORRECTION ... 121