Agroforestry Systems 14: 255-256, 1991. Contents Volumel4 1991 Volume 14 No.1 BARROW, E.G.C.: Evaluating the effectiveness of participatory agroforestry extension programmes in a pastoral system, based on existing traditional values. A case study of the Turkana in Kenya AHMED, P.: Agroforestry: a viable land use of alkali soils TABORA Jr., P.C.: Analysis and evaluation of agroforestry as an alternative environmental design in the Philippines TEKLEHAIMANOT, Z. and JARVIS, P.G.: Modelling of rainfall intercep- tion loss in agroforestry systems WOJTKOWSKI, P.A. and CUBBAGE, F.W.: A bordered matrix approach to the bioeconomic modeling of agroforestry systems Volume 14 No.2 CAMPBELL, B.M., CLARKE, J.M. and GUMBO, D.J.: Traditional agroforestry practices in Zimbabwe FUJISAKA, S. and WOLLENBERG, E.: From forest to agroforest and logger to agroforester: a case study HACKETT, C.: Mobilising environmental information about lesser-known plants: the value of two neglected levels of description MAILLE, P.J.: Refining a previous analysis of the economics of a eucalyp- tus/agricultural crop combination RICO-GRAY, V., CHEMAS A. and MANDUJANO, S.: Uses of tropical deciduous forest species by the Yucatecan Maya WOJTKOWSKI, P.A., JORDAN, C.F. and CUBBAGE, F.W.: Bioeconomic modeling in agroforestry: a rubber-cacao example Book reviews Announcement Volume 14 No.3 BADJI, S., NDIAYE, I., DANTHU, P. and COLONNA, J.P.: Vegetative propagation studies of gum arabic trees. 1. Propagation of Acacia senegal (L.) Willd. using lignified cuttings of small diameter with eight nodes JAMA, B. and GETAHUN, A.: Intercropping Acacia albida with maize (Zea mays) and green gram (Phaseolus aureus) at Mtwapa, Coast Province, Kenya 256 ORMAZABAL, C.S.: Silvopastoral systems in arid and semiarid zones of northern Chile SIAW, D.E.K.A., KANG, B.T. and OKALI, D.U.U.: Alley cropping with Leucaena leucocephala (Lam.) De Wit and Acioa barteri (Hook.f.) Engl. VANDENBELDT, R.J.: Rooting systems of western and southern African Faidherbia albida (Del.) A. Chev. (syn. Acacia albida Del.) — a compara- tive analysis with biogeographic implications Book reviews Press release Volume contents Author index Instructions to authors Author index Volumel4 1991 Ahmed, P., 23 Getahun, A., 193 Okali, D.U.U., 219 Badji, S., 183 Gumbo, D.J., 99 Ormazabal, C.S., 207 Barrow, E.G.C., 1 Hackett, C., 131 Rico-Gray, V., 149 Campbell, B.M., 99 Jama, B., 193 Siaw, D.E.K.A., 219 Chemas, A., 149 Jarvis, P.G., 65 Tabora Jr., P.C., 39 Clarke, J.M., 99 Jordan, C.F., 163 Teklehaimanot, Z., 65 Colonna, J.P., 183 Kang, B.T., 219 Vandenbeldt, R.J., 233 Cubbage, F.W., 81, 163 Maille, P.J., 145 Wojtkowski, P.A., 81, 163 Danthu, P., 183 Mandujano, S., 149 Wollenberg, E., 113 Fujisaka, S., 113 Ndiaye, I., 183