Includes references.

Vol. 13 -- Reef-forming Corals in Eastern Cebu / Exuperancio Montecillo -- Studies on the Culture of Eucheuma Striatum / Adelaida B. Colina -- Preliminary Investigation Of The Euthesocomatous Pteropods of Hilutangan Channel, Cebu, Philippines / Noel B. Solis -- Chemical, Biological, and Integrated Bio-chemical Control of Meloidogyne Incognita (a Summary) / Julita Son Ruelo, S.Sp.S -- Biting Insects of Puerto Azul, Tarnate, Cavite / Ruben G. Basio -- A Determination of the Average Water Consumption In Cebu City / Mario Y. Tan -- the Taylor Tube Setup as a Measuring Instrument for the Dynamic Modulus of Elasticity of Thin Circular Plates / Vicenta Cabahug-Maxino -- Construction of Odd Order Magic Squares / Showpi Tsai Tan -- Preparation of Some Co (Ii) Complexes With N, N'-dibenzylselenourea and N, N'-dibenzylthiourea / L. U. Rivero -- Thesis Abstract -- An Ecological Study of Anopheles Mosouitoes in Asuncion, Davao Del Norte / Estrella Y. Cequiña and Enrique Schoenig, SVD

English.