Interational Symposium on the Biochemistry of Para sites and Host-Parasite Relationships Interational Symposium on the Biochemistry of Parasites and Host-Parasite Relationships,3rd, Beerse, International Symposium on the Molecular Biology of the Mamualian Genetic Apparatus-its Relationship International symposium on the chemistry of the coordination compounds International Symposium on Electrochemistry in Mineral and Metal Processing International Symposium on the Chemistry of Natural Products,3d,Kyoto,1964