1. Contribution à l'etude ecologique et biologique de la rivière le Gapeau (Var)

   • A. Kiener
   • J. Ollier

   OriginalPaper 01 October 1970 Pages: 189 - 251

2. The major cations in Lake Maryût waters

   • Saad K. El-Wakeel
   • Selim A. Morcos
   • A. M. Mahlis

   OriginalPaper 01 October 1970 Pages: 253 - 274

3. The major anions in Lake Maryût waters

   • A. M. Mhalis
   • Selim A. Morcos
   • Saad K. El-Wakeel

   OriginalPaper 01 October 1970 Pages: 275 - 294

4. Sur le cycle biologique de Sphaeroma hookeri leach (Isopode flabellifère) dans les eaux de la Durançole (B. du Rh.)

   • Jacqueline Talin

   OriginalPaper 01 October 1970 Pages: 295 - 303

5. The effect of weak auxins on the growth of blue-green algae

   • Mirza Rashid Ahmad
   • Alan Winter

   OriginalPaper 01 October 1970 Pages: 305 - 316

6. Studies on the effects of calcium bicarbonate concentrations on the biology of biomphalaria pfeifferi (Krauss) (Gastropoda: Pulmonata)

   • A. D. Harrison
   • N. V. Williams
   • G. Greig

   OriginalPaper 01 October 1970 Pages: 317 - 327

7. Some mineral nutrient studies of a lowland mere in Cheschire, England

   • H. M. Grimshaw
   • M. J. Hudson

   OriginalPaper 01 October 1970 Pages: 329 - 341

8. Libri novi

   • R. Boddeke

   BookReview 01 October 1970 Pages: 343 - 344