EDITORIALS
Fluoride and the heart ... 1
Total fluoride exposure ... 4

ORIGINAL ARTICLES
An inquiry into the distribution of fluoride in the environment of Garrison, Montana
  CE Kay. Missoula, Montana ... 7

Translocation of fluoride in woody plants
  Th Keller. Birmensdorf, Switzerland ... 31

Urinary hydroxyproline, citrate, creatinine and fluoride after ingestion of low doses of fluoride in human subjects
  RL Speirs. London, England ... 36

Chronic fluoride intoxication from drinking water
  HT Petraborg. Aitkin, Minnesota ... 47

Heart deaths and fluoridation
  I Jansen, RN, HM Thomson. Antigo, Wisconsin and North Andover, Massachusetts ... 52

ABSTRACTS
Artificial plaque prevention with organic fluorides
  MM Dolan, BJ Kavanagh, SL Yankell. Philadelphia, Pennsylvania ... 57

Effect of fluoride on bone formation and strength in Japanese quail
  MM Chan, RB Rucker, F Zeman, RS Riggins Davis. California ... 58

Systemic fluoride poisoning resulting from a fluoride burn
  WJ Burke, UR Hoegg, RE Phillips. North Tarrytown, New York, and Paine, DBR ... 60

The influence of fluoride on mineralization on rat teeth
  O Meffert, J Kammerer. Gottingen, Federal Republic of Germany ... 61

Radiological and clinical reversibilities in a case of osteoporosis
  MM Jean-Jacques Herbert, Jean-Jules Francon. Aix-les-Bains, France ... 62

The mechanism of inhibition by fluoride of mitochondrial fatty acid oxidation
  JJ Batenburg, SG van den Bergh. Utrecht, the Netherlands ... 63

Effect of fluoride on carbon dioxide and acid formation in salivary sediment mixtures incubated with glucose
  HJ Sandham, I Kleinberg. Winnepeg, Manitoba ... 64

EDITORIAL
Sodium Fluoride in Osteoporosis ... 65

ORIGINAL ARTICLES
Fluoride effects on chlorophyll biosynthesis in nicotiana tabacum
  WJ Wallis, GW Miller, M Psenak, J Shieh. Bellingham, Washington ... 69

Fluoride-calcium interaction in polluted fir needles
  JP Garrec, JC Oberlin, E Ligeon, AM Bisch, A Fourcy. Grenoble, France ... 78

Fluoride-containing mineral supplement in agriculture
  W OeIschlager. Stuttgart-Hohenheim, West Germany ... 84

Evaluation of some health parameters in children in the vicinity of an aluminum factory
  G Balazova, V Lipkova. Bratislava, Czechoslovakia ... 88

Effects of fluoride on the kidney (a review)
  J Jankauskas. Pensacola Beach, Florida ... 93

Report of a meeting: Sodium fluoride therapy for osteoporosis ... 105-108

CORRECTION ... 108
CORRESPONDENCE ... 108

ABSTRACTS
Effects of fluoride on calcium metabolism in osteoporosis
  SH Cohn, CS Dombrowski, W Hauser, HL Atkins. Long Island, New York ... 109

Skeletal changes in chronic industrial fluorosis of cows
  E Lasarov, B Tatarov, G Dimitrov. L Kantschev, K Kovatschev. ... 111

Effects of excess calcium on a fluoride-magnesium inter-relationship in chicks
  JC Rogler, HE Parker. West Lafayette, Indiana ... 112

Fluoride content of north Indian foods
  RS Nanda. Oklahoma City, Oklahoma ... 114

Inorganic fluoride poisoning: treatment by hemodialysis
  L Berman, D Taves, S Mitra, K Newmark.
  Cleveland, Ohio and Rochester, New York ... 117

EDITORIAL
The Pre-skeletal phase of chronic fluoride intoxication ... 118

SPECIAL ARTICLE
Fluoride and the environment
  CG Dobbs. Bangor, North Wales ... 123

ORIGINAL ARTICLES
Differential diagnosis of fluoride poisoning in cattle
  HD Gründer. Hannover, West Germany ... 135

Human free ionized plasma fluoride concentrations during pregnancy, toxemia, and lactation
  H Hanhijarvi. Turku, Finland ... 143

A double blind test for determination of intolerance to fluoridated water (Preliminary report)
  GW Grimbergen. Haarlem, Netherlands ... 146

Observations on cancer in a steel city
  VA Cecilioni. Hamilton, Ontario ... 153

ABSTRACTS
Fluoride levels in the surface enamel of different types of human teeth
  R Aasenden, EC Moreno, F Brudevold. Boston, Massachusetts ... 166

Increased Fluoride levels in Antwerp's water supply through fluoride influx into the Meuse River
  R Verheyden, V VanCraenenbroeck, J Meheus. Antwerp, Holland ... 167

Contribution to the neurological symptomatology of fluorosis
  J Franke, R Lahl, F Fengler, HD Hempel. Halle/Saale, DDR ... 168

Fluoride-induced diuresis: renal-tissue solute concentrations, functional, hemodynamic, and histologic correlates in the rat
  GM Whitford, DR Taves. Rochester, New York ... 169

Eye damage in workers with fluorine intoxication
  VA Maltseva. USSR ... 172

Acute fluoride poisoning
  R Clarke, J Welch, G Leiby, WY Cobb, JN MacCormack. Atlanta, Georgia ... 173

EDITORIAL
Fluoride Versus Sulfur Oxides in Air Pollution ... 174

ORIGINAL ARTICLES
Evidence of muscle fiber degeneration in rabbits treated with sodium fluoride
  RD Kaul, AK Susheela. New Delhi, India ... 177

Fluoride distribution in the Silverbow, Montana area
  C van Hook. Missoula, Montana ... 181

Circulatory plasma immunreactive parathyroid hormone levels (IPTH) in endemic skeletal fluorosis with secondary hyperparathyroidism
  SPS Teotia, M Teotia, RR Burns, S Heels. Meerut India, and London, England ... 200

Enclocrinal aspects of endemic fluorosis
  SS Jolly, VP Singla, R Sharma, SM Ralhan, SS Sandhu. New Delhi, India ... 208

Fluoride in the environment
  GL Waldbott, W OeIschlager. Warren, Michigan and Stuttgart-Hohenheim, DBR ... 220

ABSTRACTS
Studies about fluoride emissions from brown coal electrical power plants
  HG Dässler, S Börtitz, E Auermann. Dresden, GDR ... 223

Dietary fluoride in different areas in the United States
  L Kramer, D Osis, E Wiatrowski, H Spencer. Hines, Illinois ... 224

Interference of fat and fluoride on gastric emptying of rats
  EL McGown, JW Suttie. Madison, Wisconsin ... 225

Urinary fluoride levels in polytetrafluoroethylene fabricators
  PL Polakoff, KA Busch, MT Okawa. Cincinnati, Ohio ... 226

CORRECTIONS ... 227