Table of Contents of the First Saudi Biological Society Conference

• TYPES OF DESERT HABITAT AND THEIR VEGETATION IN CENTRAL AND EASTERN SAUDI ARABIA, A.M. Migahid and A. M. EISheikh

• DESERTIZATION IN SAUDI ARABIA, H.H. Hajara and K.H. Batanouny

• EFFECT OF CYCOCEL AND ALAR ON GROWTH AND YIELD OF VICIA FABA PLANTS GROWN IN SALINE SOIL, Saharn M. Moustafa, M. A. EIGandour and Safia M. Gazzy

• ACCESSORY CHROMOSOMES IN MEMBERS OF LILIFLORAE IN SAUDI ARABIA , Salah Eldin Eid Botany Department,

• GERMINATION OF THREE DESERT ACACIAS IN RELAnON TO THEIR SURVIVAL IN ARID ENVIRONMENT, A. Mahmoud 

• WATER ECONOMY AND WATER METABOLISM OF CAMELS AND DONKEYS, UNDER DESERT CONDITIONS, I. S. Kawashti and M. M. Omar

• STEM ANATOMY OF SOME SOLANACEOUS TAXA AS DIAGNOSTIC CRITERIA, S. F. Khalifa

• THE EFFECT OF CHILLING ON THE ACTIVITY LEVELS OF AUXIN OXIDASE, LIPASE AND FATTY ACIDS OF DORMANT PEACH SEEDS , Seham M. Moustafa

• COMPARATIVE HOMEOTHERMICITY OF CAMELS AND DONKEYS UNDER THE CLIMATIC CONDITIONS OF THE DESERT, I. S. Kawashti and M. M. Omar

• MACRO AND MICROMORPHOLOGICAL STUDIES OF SOME MEMBERS OF THE GENUS DATURA, S.F. Khalifa and K. A. Ahmed

• PRELIMINARY STUDY OF THE SOLAR RADIAnON EFFECT ON SKIN CANCER, S.A. Sohaibany and H. A. Bokhary

• ON THE FUNGAL FLORA OF SAUDI ARABIA. 11. SEASO},'AL FLUCTUATIONS OF FUNGI IN THE RHIZOSPHERE OF SOME PLANTS, M. I. Ali, A.H. Abu-Zinada and Z. EI-Mashharawi

• SURVEY OF AIR-BORNE MOULD FLORA AT RIYADH, SAUDI ARABIA, M. I. Ali, A.H. Abu-Zinada and Z. EI-Mashharawi

• STUDIES ON DAMPING-OFF DISEASE OF ALFALFA IN SAUDI ARABIA, Saad Mohamed Fathi Ahmad

• THE USE OF OPALINA SPECIES PARASITIC IN THE SAUDI FROG, RANA RIDIBUNDA, IN A BIOLOGICAL TEST FOR DETECTING CARC~OGENIC TRYPTOPAN METABOLITES , M. M. El Mofty

• STATUS OF PLANT PARASITIC NEMATODES AND THEIR CONTROL FEASIBILITY IN THE KINGDOM OF SAUDI ARABIA, M. F. M. Elssaa

• COMPARATIVE TOXICITY OF SOME INSECTICIDES APPLIED AS RESIDUAL FILMS TO DROSOPHILA MELANOGASTER (I) FROM SAUDI ARABIA , E. 1. EI-Sayed and G. S.

• THE STRUCTURE OFTHE KIDNEY IN SNAKES WITH SPECIAL REFERENCE TO THE SEXUAL SEGMENT, F. I. Amer and H. A. Elshabka

• EFFECT OF LETHAL TEMPERATURE ON THE FINE STRUCTURE OF THE KIDNEY OF SOME DESERT ANIMALS, M. EI-Gohary and B.M. Ashour 

• A STUDY OF THE HISTOLOGY OF THE ADRENAL GLAND AND OF SOME BLOOD CONSTITUENTS OF THE CAPTIVE LIZARD UROMASTIX AEGYPTIA, Maysarah N. Sa'di, Mohammed Islam and Abdul Majeed 

• SUSCEPTIBILITY OF SOME CITRUS ROOTSTOCKS TO THE CITRUS NEMATODE, TYLENCHULUS SEMIPENETRANS COBB 1913 AND THE SPIRAL NEMATODE, HELICOTYLENCHUS DlHYSTERA (COBB, 1893) SHER 1961 IN SAUDI ARABIA, Eissa, M.F.M., S. Mostafa and M. S. Alkahtani*

• SUSCEPTIBILITY OF SOME GRAPE-VINE CULTIVARS TO THE SOUTHERN ROOT-KNOT NEMATODE, MELOIDOGYNE INCOGNITA (KOFOID & WHITE 1919) CHITWOOD 1949 IN SAUDI ARABIA , M. F. M. Eissa, A.A, Salem and F.H. El-Samiraii

• ENZYMATIC ACTIVITIES OF SOFT ROT BACTERIA IN RELATION TO PATHOGENESIS , M.  Zaki, S.A. Z. Mahmoud and  G. Fawzi

• EFFECT OF WATER-CONTENT AND POTATO VARIETY ON ROTTING ABILITY AND ENZYMATIC OF SOFT ROT BACTERIA , S. A. Z. Mahmoud, M. M. Zaki, A. M. Abdel-Hafez and F. G. Fawzi

• A PRELIMINARY RECORD ON THE OCCURRENCE OF SOME PLANT FUNGAL DISEASES IN RIYADH REGION (SAUDI ARABIA) , A.A.M. Sayigh", Z. A. Sebai"" and Abdul Haleem"** *