PERTANIKA welcomes original reports in English or Bahasa Malaysia of research not previously or simultaneously published in any scientific or technical journal from the staff of Universiti Pertanian Malaysia and other local and overseas institutions and organisations. Currently these include Agriculture, Forestry, Veterinary and Animal Science, Food Science and Technology, Economics and Management, Engineering, Fisheries and Marine Science, Science and Environmental Studies, Extension and Continuing Education, Education and Social Studies, Human Development and Consumer Studies. ZOHADIE BARDAIE MAT YUSOFF ABDULLAH SUMANGALA PILLAI ASIAH BTE MOHD ZAIN TAN HOCK SENG KAREN ANNE CROUSE BADRI AHMAD SAID SAJAP ABDUL RAHMAN MOHD AROFF (Secretary) PERTANIKA is a scientific journal published thrice a year (April, August and December) by Universiti Pertanian Malaysia (University of Agriculture, Malaysia) in which papers in Bahasa Malaysia and English in any area aligned with the work done at the faculties of the University appear. Nassar 395 Jatrofolon A dan Jatrofatrion : Dua Diterpena dari Jatropha gossypifolia - Mawardi Rahmani, Mazar Mohd Ismail dan I^eong Toi Yin ' 405 The Determination of Sub-boxes Which Might Contain the Global Minimizer(s) Using Interval Arithmetic - Ismail bin Mohd ' 409 Communication Preliminary Studies of Acid Protease and its Inhibitor in Latex of Hevea brasiliensis - Kamaruzaman Ampon and Maria Salleh 415 Section III: Social Sciences Gelagat M3 Di Malaysia: Satu Kajian Empirik - Muzafar Shah Habibullah 419 A scientific Journal published by UNIVERSITI PERT AN IAN MALAYSIA ISSNÄ¢ EDITORIAL BOARD CHIN HOONG FONG (Chief Editor) FOOK GHONG (Business Manager) MOriD. Fitton 389 An Analytical Two Resistance Mass Tranfer Model for Dye Adsorption on Bagasse Pith - G. Yeong 381 The Cyclisation of l-aryl-2-benzamidoalkan-l-ols To 4,5-Dihydro-Oxazoles or Isoquinolines - Alan Mohd Sharif and Alan O. Law and Azahar Othman 375 Oil Pollution in the Coastal Waters off Port Dickson, Straits of Malacca - IMW, A.T., V. Musa and R Sidek 371 Section II: Physical Sciences Sewage Pollution in the Coastal Waters off Port Dickson, Straits of Malacca - A, T. Ali 367 CD4/CD8 Rauos among Blood Donors in Penang - M. Ghani Ibrahim 361 The Use of Live, Frozen and Pottasium Permanganate Treated Moina micrurafor Catfish (Clarias macrocephalus) Larvae - R. Khoo 335 Taburan dan Populasi Ikan Air Tawar di Beberapa Altitud di Taman Kinabalu Sabah Malaysia - Abdullah Samat 341 Kajian Awal Kepadatan Meiofauna dalam Paya Bakau Teluk Mengkabung, Sabah - Shabdin Mohd Long dan Rusdan Karim 349 Communication Occurrence of a Mosaic Virus in Guava - Takaria Sidek and Lim Tong Kwee 367 Effects of Foliar Applications of Selected Insecticides on Cocoa Pests and Pollinators - A. Said 327 Histopathology of Melarhizium anisopliae y an Entomopathogenic Fungus, Infection in the Termite, Coplolermes curvignalhus - Ahmad Said Sajap and Kiranjeel Kaur 331 Effects of Steam and Alkali Treatment on Chemical Composition and in vitro Digestibility of Oil Palm Trunks - Ismail Ab. Siddique Sajjad 315 Infection of Chilli by Cercospora capsici- Sariah Meon 321 Influence of Light on Seed Germination of Calamus manan- Aminuddin bin Mohamad and Siti Hasanah Mohd. Chin 309 Induction of Salt Tolerance in Basmau Rice (Oryza saliva L.) - M. Ho 303 Effects of Dehydration on Freezing Characteristics and Survival in Liquid Nitrogen of Three Recalcitrant Seeds- Y.L. and A.K Razak 297 Effect of Temperature and ph on Growth Pattern of Ganoderma boninense from Oil Palm in Peninsular Malaysia-A. 3 December 1990 Contents Section 1: Biological Sciences Effect of Groundnut Plant Residues on Germination and Radicle Elongation of Four Crop Species - Zakaria, W. 1 PERTAHIHA A Journal of Biological, Physical and Social Sciences Vol.