Dr. Kassai Tibor szerk.: Parasitologia Hungarica 1. (Budapest, 1968)

Of his papers published in 1897, the most important ones attempted to give the correct approach to the control of Ancyio- stoma duodenale

. It was at that time that he was elected chief secretary of the Society of Hungarian Veterinarians. In subsequent years, he began a parasitological investigation of fish in Lake Balaton and an appraisal of L. BIRÓ's rich collections from New Guinea. He also thoroughly studied Li- phyllobothrium latum

. He was elected committee member of the Society of Natural Sciences in 1902, becoming prorector in the years 1901/2, 1902/3, and 1910/11, and chief secretary of the Congress of Veterinarians in 1905. Subsequent years also witnessed his rich and manysided publishing activities which included revision of the tenth volume of BREHM'

s „World of Animals". He published, in 1909, his still significant treatise on „Myoparasitic protozoa and their species occurring in Hungary.Sarcosporidia" in which he discussed, five years after having been elected academician, the content of his inaugural lecture held in 1908. His most important paper among several published in 1910-13 deals with the Spirochaeta of poultry. It was at that time, too, that he wrote the chapters on Trematoda, Cestoda, Nematoda, and Acanthocephala in volume III of the Fauna Regni Hungáriáé. In 1911, he was appointed assistant chief patron of the Red Cross Society in Hungary, .and full member of the National Council of Animal Health, as well as honorary lecturer in animal parasitology in the Medical Faculty of the University of Budapest, in 1915. Luring the years 1893-1915, he submitted annual reviews of literature on parasitology. The other aspect of his work comprised investigations of problems in pathological anatomy and bacteriology.These papers also testify to his excellent powers of observation and profound knowledge of these disciplines

.In addition, he made an intensive study of fish diseases, a field completely neglected until his time. In about 30 papers, he laid the foundations of the scientific study of fish ana crustacean diseases. For 20 years, he edited „Veterlnarius", „Állatorvosi Lapok" (Veterinary Journals), and „Közlemények az összehasonlító életéé kórtan köréből" (Proceedings of Comparative Physiology and