| 1. | Monitoring of some chemical and biological pollutants in wastewater of Bahr ElBaqar, Bilbies and El-Qalyubia drains in East Delta, Egypt for Irrigation purposes. | |
| Pages 12-19 | ||
| S. M. AbdEl-Al Saffaa; Zienab, H. Abd El-Aziz; Suzan A. El-sayed | ||
| 2. | Vegetation analysis of Wadi Kaam at northwest Libya | |
| Pages 20-37 | ||
| Fathi Almushghub; Dalia Ahmed; Ahmed Sharaf El-Din; Kamal Shaltout | ||
| 3. | Synthesis and antimicrobial evaluation of new heterocyclic compounds derived from 2-acetyl-5- methyl-2,4-dihydro-3H-pyrazol-3-one | |
| Pages 38-48 | ||
| K. E. Anwer; H. M. Naguib; M. E. Hasseb; G. H. Sayed | ||
