Table of Contents of the Fifth  Saudi Biological Society Conference

• SALT TOLERANCE IN BARLEY VARIETIES , S.Z. Hyder, I. Bashour and A. Tuwaigri

• EFFECTS OF SOME GROWTH REGULATORS ON SAFFLOWER YIELD AND YIELD COMPONENTS Yahia M. Makki

• PREDICTION OF ALFALFA WATER REQUIREMENT AND IRRIGAnON NEED IN ALHASSA AREA BY THE USE OF EVAPORAnON DATA. Mohammed S. Asseed, Abdul Mannan Turjoman, Yousef Katta and Hosny Etewy

• INVEnGAnON OF THE AGROCLIMATE AND MODEL FORMULAnON IN AL-HASSA ,Kenneth R. Dreaver, Mohamed S. Asseed, Yahya M. Makki and A. M. Turjoman

• BQT4N,Y NEW PLANT DISEASES IN ALHASSA OASIS - II RECORD OF 1980 , H. EI-Said, M. A. Nagieb*, N. Jaheen and H. Elarosi

• IDENTIFICATION STUDIES ON YEASTS OF DATE-PALM IN AL-HASSA, SAUDI ARABIA , H. EI-Nakhal

• LEAF SPOT DISEASES IN SAUDI ARABIA. II. - SURVEY OF LEAF SPOTS CAUSED BY ALTERNARIA SPP.  M. Y. Kassim, A. N. AbouHeilah, H. M. Sheir and H. A. Bokhary

• SUSCEPTIBILITY TESTING OF 175 SOLMONELLAE TO IS ANTIMICROBIAL AGENTS , Nassim H. Nabbut, Elie K. Barbour, Habeeb M. AI-Nakhli and Suleiman Zamel

• THE BACTERIOLOGICAL MONITORING OF THE RIYADH SEWAGE TREATMENT PLANT EFFLUENT , Nassim H. Nabbut, Elie K. Barbour, Suleiman 1. Zamel and Habeeb M. AI-Nakhli

• CHEMICAL AND MICROBIOLOGICAL STUDIES ON THE ICE CREAM IN RIYADH AREA , A. F. M. El-Erian and J. S. AlShaikhli

• EFFECT OF DIFFERENT POPULATION DENSITIES OF MELOIDOGYNE JAVANICA ON GROWTH AND YIELD OF COWPEA  Mohammed  A. Ali Plant Protection Department, College of Agriculture, King Saud University, Riyadh, Saudi Arabia.

• PLANT ANA TOMY COMPARATIVE ANATOMY OF THE LEAF AND STEM OF HELIPTROPIUM BACCfFERLIM FORSSK. AND HELIOTROPILIAf DIGYNLlM(FORSSK.) ASCH. EX. c. CHRISTENS (BORAGINACEAE) GROWING IN SAUDI ARABIA , Abdullah R. Doaigey, Hesham A. Gaward and Hassan l. Younis

• PLANT ECOLQGYANDFLOKA PLANT ECOLOGY OF DALAGHAN NATIONAL PARK, ASIR PROVINCE, SAUDI ARABIA. H. A. Abulfatih

• WILD PLANTS OF ABHA AND ITS SURROUNDINGS H. A. Abulfatih

• BIOLOGICAL SCREEING AND CHEMICAL INVESTIGAnON OF SOME EUPHORBIA SPECIES, Saboor Ahmad,

• SAUDI ARABIA: SOME OF ITS FLORISTIC AFFINITIES WITH NEIGHBOURING AREAS.PART I: SAUDI ARABIA AND EGYPT.  Hassan Mustafa Hassan

• SAUDI ARABIA: SOME OF ITS FLORISTIC RELAnONSHIPS WITH NEIGHBOURING AREAS. PART 2: RELATIONSHIP WITH SUDAN (INCLUDING THE SUDAN-EGYPT CONNECTIONS).  Hassan Mustafa Hassan

• ENTOMOLOGY CONTRIBUTION TO THE BIOLOGICAL CONTROL OF THE DOMESTIC HOME FLY,' MUSCA DOMESTlCA L. IN RIY ADH REGION (SAUDI ARABIA). A. I. Dabbour, M. E. Moussa, M, I. Abd-EI-Aziz and M. A. Naser Department of Plant Protection,

• INSECTS AND MITES ATTACKING DATE PALM IN THE EASTERN PROVINCE OF SAUDI ARABIA.  S. M. Harnmad, A. A. Kadous and M. M. Ramadan

• ZOOLOGY CELL STRUCTURe SPERMIOGENESIS IN DINEUTES AEREUS (KLUG) (GYRINIDAE: COLEOPTERA).]. MITOCHONDRIA DIFFERENTIATlON AND FLAGELLUM FORMATION.  A. S. N. EI-Hawawi

• DEAD CELLS AND THEIR FATE IN THE EMBRYONIC MASS OF THE IMPLANTING MOUSE BLASTOCYST: LIGHT AND ELECTRON MICROSCOPE STUDY.  Abdel-Fattah M. El-Shershaby

• ON PLEUROGENOlDES STROMI TRAVASSOS, 1930 (TREMATODA: LECITHODENDRIIDAE) FROM SAMLL INTESTINE OF A FROG  , M. M. Ali and A. M. N. Kalantan

• A STUDY OF SOME ELECTROLYTES AND BLOOD TRAITS OF THE ONE-HUMPED CAMEL ( C. DROMEDARIUS) IN SAUDI ARABIA , F. M. EI Amin, Abdul Aziz A. AlSaleh, Noory T. EI Taib and M. A. Khan

• POPULATION GENETICS OF THE CATS OF AL-KHOBAR, SAUDI ARABIA.  Brian K. Davis

• POPULATION STRUCTURE OF RANA RIDIBUNDA IN THE ALQATIF OASIS, Jeffrey Briggs

• DISTRIBUTION OF THREE SPECIES OF SNAILS (GASTROPODA, MOLLUSCA) IN AN INLAND MARSH AND IN A DRAINAGE CANAL IN AL-HASSA REGION , Abdul Qayyum Siddiqui

• ARABIC SECTION ARAB BREEDS OF SHEEP AS A VALUABLEGERMPLASM RESOURSE, Yousef S. Ghanem Institute of Meteorology & Arid Lands Studies, King Abdul-Aziz University, Jeddah.

• GENERATION OF SANDSTROMS AND THEIR MORE FREQUENTLY INFLUENCED ZONES IN SAUDI ARABIA , Jebad M. Kerbe