GUEST EDITORIAL
Interactions between fluorine and phosphorus
  A Machoy-Mokrzynska and Z Machoy ... 99-100

ORIGINAL ARTICLES
Studies on effects of fluoride in 36 villages of Mehsana District, North Gujarat
  NJ Chinoy, MV Narayana,
  E Sequeira, SM Joshi,
  JM Barot, RM Purohit,
  DJ Parikh, NB Ghodasara,
  India ... 101-110

Fluoride levels in borehole water around Nairobi
  JK Gikunju, K Githui ,
  TE Maitho, Kenya ... 111-114

Phytotoxic effects of gaseous fluorides on grain crops in the Southeast Ukraine
  NP Gritsan, Ukraine ... 115-122

A study of damage to hard tissue of goats due to industrial fluoride pollution
  Wang Jundong, Zhan Chongwan,
  Chen Youfa, Li Jinxi, Hong Jieping,
  Wang Weifeng, Cai Jianping,
  China ... 123-128

The influence of sodium hydrogen carbonate on the elimination of fluoride in rats
  W Czarnowski, J Krechniak
  K Wrzesniowska, Poland ... 129-134

evaluation of spatial variation in water soluble fluorine content of the soils of different agro-climatic zones of Haryana, India
  MS Grewal, IS Dahiya,
  India ... 135-142

Underground potable water fluoride levels of the town of hisar and total fluoride intake of selected families
  S Gupta, U Mehta, A Singh,
  India ... 143-148

Biochemical effects of fluoride on lipid metabolism of the reproductive organs of male rabbits
  A Shashi, India ... 149-154

Protein degradation in skeletal muscle of rabbit during experimental fluorosis
  A Shashi, JP Singh, SP Thapar,
  India ... 155-158

ABSTRACTS
Is the ingestion of fluoride an immunosuppressive practice?
  PRN Sutton, Australia ... 159-160

THe severity of dental fluorosis in children exposed to water with a high fluoride content for various periods of time
  T Ishii, C Suckling,
  Japan and New Zealand ... 160-161

Hip fractures and fluoridation in Utah's elderly population
  C Danielson, JL Lyon, M Egger,
  GK Goodenough, USA ... 161

Letters to the Editor
Fluoridation and osteoporosis '92
  JR Lee, USA ... 162-164

CORRECTION
  JS Small, USA ... 164