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Bodrogközy György; Horváth Imre: Production Examinations on Plant Associations of Grass-lands with Solonetz Soil. I. Effect of Climatic and soil Factors on Dry Matter, Carbohydrate and Nitrogen Contents of Artemisio-Festucetum pseudovinae. In: Acta biologica, (15) 1-4. pp. 3-10. (1969)
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Joó Ferenc: Electron histochemical structure of capillaries in the rat brain. In: Acta biologica, (15) 1-4. pp. 79-87. (1969)
Köves Erzsébet; Sirokmán Ferenc: Relationship between plant growth regulation and phosphorylation processes. II. Influence of plant growth substances on metabolism of the phosphorus compounds in plant tissues. In: Acta biologica, (15) 1-4. pp. 57-64. (1969)
Maróti Imre: Manifestation of chemical and biological motion forms in the exeptional rearrangement of macromolecules. In: Acta biologica, (15) 1-4. pp. 11-27. (1969)
Pataky Szerén: Comparison of the leaf epidermis of Salix alba L. in different regions of the leafy crown. In: Acta biologica, (15) 1-4. pp. 29-36. (1969)
Pálfi Gábor: Das Prolin, die den Wassermangel dere Pflanzen anzeigende Aminosäure. In: Acta biologica, (15) 1-4. pp. 65-70. (1969)
Rezk Malak R.; Ferenczy Lajos: Growth Inhibiting Activity of Some Steroid Glycoalkaloids on Higher Plants. In: Acta biologica, (15) 1-4. pp. 71-78. (1969)
Simoncsics Pál: Sporen-, Pollen und Moortypen aus dem miozänen Braunkohlengebiet von Nógrád. In: Acta biologica, (15) 1-4. pp. 37-49. (1969)
Stammer Aranka: Comparative investigations on the ciliary ganglion of fresh-water fishes. In: Acta biologica, (15) 1-4. pp. 101-109. (1969)
Szalay László; Tombácz Erzsébet; Bálint E.; Horváth Imre; Schneider Gyula: The effect of the spectral composition of the light on the chlorophyll and carotenoid contents of Beean Leaves (Phaseolus vulgaris L.). In: Acta biologica, (15) 1-4. pp. 51-56. (1969)
Szító András: Camptochironomus hungaricus, a new Chironomus species. In: Acta biologica, (15) 1-4. pp. 111-115. (1969)