THE RELATIONSHIPS BETWEEN PROTOZOA AND VIRUSES
2. VIRUS-LIKE PARTICLES AND CYTOPATHOGENIC AGENT IN PROTOZOA; pp. 185–194

IDENTIFICATION OF CLONES IN CYPRIPEDIUM CALCEOLUS L (ORCHIDACEAE); pp. 195–199

ПЯДЕНИЦЫ РОДА EUPITHECIA CURT. (LEPIDOPTERA, GEOMETRIDAE) ДАЛЬНЕГО ВОСТОКА СССР. I; pp. 200–214

DISCOMYCETES OF MIDDLE ASIA
IV. NEW DATA ON ASCOBOLACEAE AND THELEBOLACEAE; pp. 215–222

ИЗУЧЕНИЕ РАЗГРАНИЧИТЕЛЬНОЙ СПОСОБНОСТИ ПОКАЗАТЕЛЕЙ СТРУКТУРЫ ЭПИФИТНОГО ЛИШАЙНИКОВОГО ПОКРОВА; pp. 223–233

ACCUMULATION OF HEAVY METALS IN THE BALTIC SEA ALGAE; pp. 234–241

LONG-TERM CHANGES IN THE BOTTOM VEGETATION OF HOGLAND (SUURSAARI) ISLAND COASTAL WATERS; pp. 242–244

VIRUS RESISTANCE CONNECTED WITH TOLERANCE IN TOMATO PLANTS; pp. 245–246