1. Quality of Water from Hand Dug Wells in Onitsha Metropolitan Areas of Nigeria

   • S. I. Efe

   Original Articles Pages: 5 - 12

2. Photosensitized Inactivation of Cyst Forms of the Freshwater Amoeba Vahlkampfia hartmanni by Aluminium (III) Phthalocyanine Tetrasulfonate

   • Kawser Kassab
   • Ahmad Z. Al-Herrawy

   Original Articles Pages: 13 - 18

3. Impact of Human Activities on Carbon Dioxide (CO₂) Emissions: A Statistical Analysis

   • Md. Abdus Salam
   • Toshikuni Noguchi

   Original Articles Pages: 19 - 30

4. Primary Productivity and the Impacts of the Exotic Weed Eupatorium Glandulosum in a Montane Grassland of Garhwal Himalaya

   • Indu Bughani
   • GOVIND S. RAJWAR

   Original Articles Pages: 31 - 38

5. Public Perception of Flood Hazard in the Niger Delta, Nigeria

   • Temi E. Ologunorisa
   • Ademola Adeyemo

   Original Articles Pages: 39 - 45

6. A Simplified Method for Determination of Pentachlorophenol and Hexachlorobenzene in Soil Contaminated by Industrial Chemical Residues

   • Flavia P. S. Airoldi
   • Vânia G. Zuin
   • Maria O. O. Rezende

   Methods Pages: 47 - 49

7. An Inexhaustible Supply

   • Milton Saier

   Essay Pages: 51 - 53

8. Deserts: The Living Drylands, by Sora Oldfield

   • M. Kassas

   Book Review Pages: 55 - 55