EDITORIALS
GUEST EDITORIAL: FLUORIDE-MAGNESIUM INTERACTION
A Machoy-Mokrzynska, Poland ... 175-177

XXIST WORLD CONFERENCE OF ISFR ... 177
KILLING THE MESSENGER
  Bruce Spittle ... 178-179

RESEARCH REPORTS
CORRELATION AMONG HEAVY METALS AND FLUORIDE IN SOIL, AIR AND PLANTS IN RELATION TO ENVIRONMENTAL DAMAGE
  N P Gritsan, G W Miller and G G Schumatkov, Ukraine ... 180-188

EFFECT OF FLUORIDE EXPOSURE ON INTELLIGENCE IN CHILDREN
  X S Li, J L Zhi and R Q Gao, China ... 189-192

CHANGES OF THE HUMAN ERYTHROCYTE MEMBRANE PROTEIN SH BINDING SITE PROPERTY WITH EXPOSURE TO FLUORIDE AND THREE STRONG MUTAGENS
  Yingyan Wang, Xiaojie Li and Wenjuan Xin, China ... 193-200

HIGH FLUORIDE CONTENT OF FOOD AND ENDEMIC FLUOROSIS
  Y Z Han, J Q Zhang, X Y Liu et al , China ... 201-202

ENDEMIC FLUOROSIS IN SAN LUIS POTOSI, MEXICO. IDENTIFICATION OF RISK FACTORS ASSOCIATED WITH OCCUPATIONAL EXPOSURE TO FLUORIDE
  J Calderón, I Romieu, M Grimaldo et al, Mexico ... 203-208

REVIEW - Historical piece
THE QUESTION OF FLUORIDATION
  J R Marier ... 209-212

ABSTRACTS

On dental effects:
AN ANALYSIS AND MONITORING REPORT: WATER FLUORIDATION IN NEW ZEALAND
  Public Health Commission, New Zealand ... 213

SCIENCE OR FICTION ?
  John Colquhoun, New Zealand 214

FLUORIDE - HOW MUCH OF A GOOD THING? INTRODUCTION TO THE SYMPOSIUM
  B A Burt, USA ... 214

COMMENTARY ON AND RECOMMENDATIONS FOR THE PROPER USES OF FLUORIDE
  H S Horowitz, USA ... 215

SOURCES OF FLUORIDE INTAKE IN CHILDREN   S M Levy, M C Kiritsy and J J Warren, USA ... 215-216

THE CARIOSTATIC MECHANISMS OF ACTION OF FLUORIDES. A REVIEW
  C Fischer, A Lussi and P Hotz, Germany ... 216

CHARACTERIZATION OF FLUOROSED HUMAN ENAMEL BY COLOR REFLECTANCE, ULTRASTRUCTURE, AND ELEMENTAL COMPOSITION
  N J Giambro, K Prostak and P K Denbesten, USA ... 216-217

STUDIES ON THE INFLUENCE OF FLUORIDE ON THE EQUILIBRATING CALCIUM PHOSPHATE PHASE AT A HIGH ENAMEL/ACID RATIO
  E I F Pearce, M J Larsen and T W Cutress, New Zealand ... 217

ENDEMIC FLUOROSIS IN SAN LUIS POTOSI, MEXICO I. IDENTIFICATION OF RISK FACTORS ASSOCIATED WITH HUMAN EXPOSURE TO FLUORIDE
  M Grimaldo, V H Borja-Aburtom, A L Ramirez et al, Mexico ... 218

LIST OF OTHER ARTICLES ON DENTAL EFFECTS ... 218

RELATIONSHIP BETWEEN BONE FLUORIDE CONTENT, PATHOLOGICAL CHANGE IN BONE OF ABORTED FETUSES, AND MATERNAL FLUORIDE LEVEL
  J Shi, G Dai and Z Zhang, China ... 219A

PHYSIOLOGICALLY BASED PHARMACOKINETIC MODEL FOR FLUORIDE UPTAKE BY BONE
  H V Rao, R P Beliles, G M Whitford and C H Turner, USA 220

FLUORIDE AND BONE HEALTH
  K Phipps, USA 220-221

RELATIONSHIP BETWEEN FLUORIDE CONTENT IN BONES AND THE AGE OF EUROPEAN ELK (ALCES ALCES L)
  Z Machoy, E Dabkowska, D Samujlo et al, Poland ... 221

DIAGNOSIS AND TREATMENT OF OSTEOPOROSIS
  C Alexandre, France ... 221-222

HISTOMORPHOMETRIC ANALYSIS OF ILIAC CREST BONE BIOPSIES IN PLACEBO-TREATED VERSUS FLUORIDE-TREATED SUBJECTS
  M W Lundy, M Stauffer, J E Wergedal et al, USA ... 222

On non-skeletal effects:
RELATION OF EXPOSURE TO AIRWAY IRRITANTS IN INFANCY TO PREVALENCE OF BRONCHIAL HYPER-RESPONSIVENESS IN SCHOOLCHILDREN
  V Søyseth, J Kongerud, D Haarr et al, Norway ... 223

ASTHMA and respiratory problems - a review.
  T V O'Donnell, New Zealand ... 223

EFFECT OF DIFFERENT EXPOSURE COMPOUNDS ON URINARY KINETICS OF ALUMINIUM AND FLUORIDE IN INDUSTRIALLY EXPOSED WORKERS
  F Pierre, F Baruthio, F Diebold and P Biette, France ... 224

SHIBBOLETHS AND JIGSAW PUZZLES: THE FLUORIDE NEPHROTOXICITY ENIGMA
  B R Brown, USA ... 225

HUMAN KIDNEY METHOXYFLURANE AND SEVOFLURANE METABOLISM: INTRARENAL FLUORIDE PRODUCTION AS A POSSIBLE MECHANISM OF METHOXYFLURANE NEPHROTOXICITY
  E D Kharasch, D C Hankins and K E Thummel, USA ... 225-226

RENAL FUNCTION AND SERUM FLUORIDE CONCENTRATIONS IN PATIENTS WITH STABLE RENAL INSUFFICIENCY AFTER ANESTHESIA WITH SEVOFLURANE OR ENFLURANE
  P F Conzen, M Nuscheler, A Melotte et al, Germany ... 226-227 S

SERUM HAPTOGLOBIN AND C-REACTIVE PROTEIN IN HUMAN SKELETAL FLUOROSIS
  A K Susheela and P Jethanandani, India ... 227

SAFETY OF CIPROFLOXACIN THERAPY IN CHILDREN: MAGNETIC RESONANCE IMAGES, BODY FLUID LEVELS OF FLUORIDE AND LINEAR GROWTH
  K M Pradhan, N K Arora, A Jena et al, India ... 228

INHALATION ONCOGENICITY BIOASSAY IN RATS AND MICE WITH VINYL FLUORIDE
  M S Bogdanffy, G T Makovec and S R Frame, USA ... 228-229

On effects on plants:
GRAMINE AND FREE AMINO ACIDS AS INDICATORS OF FLUORIDE-INDUCED STRESS IN BARLEY AND ITS CONSEQUENCES TO INSECT HERBIVORY
  E L Hautala and J K Holopainen, Finland ... 229

PLANT UPTAKE OF FLUORIDE IN IRRIGATION WATER BY LADYFINGER (ABELMORCHUS ESCULENTUS)
  V Singh, M K Gupta, P Rajwanshi et al, India ... 230