Ultrastructural features of canine distemper virus infection of the chorioallantoic membrane of the hen's egg.

PAGE Ultrastructural Features of Canine Distemper Virus Infection of the Chorioallantoic Membrane oftheHen's Egg. By A. M. LAWN . 157 Effect of U.v.-irradiated Vesicular Stomatitis Virus on Nucleic Acid Synthesis in Chick Embryo Cells. By Y. YAOI, H. Mrrsu[ and M. AMANO. 165 Antibody-neutralized Avian Infectious Bronchitis Virus in Chicken Embryo Kidney Cells: Entry and Degradation. By M. F. STmsKI and C. H. CUNNINGHAM. 173 Etude G6n6tique du Virus de la Stomatite V6siculaire: Classement de Mutants Thermosensibles Spontands en Groupes de Compl6mentation. Par A. FLAMAND 187 Ultraviolet Reactivation in Bacteriophage Lambda. By M. G. R. HART and J. ELLISON . 197 Propagation d'un Virus Sigma Ddfectif au Niveau de Disques Imaginaux d'Aile Implant,s dans des Drosophiles Adultes. Par J. BERNA~.D 209 A Full Expression of the Genome of Rous Sarcoma Virus in Heterokaryons Formed after Fusion of Virogenic Mammalian Cells and Chicken Fibroblasts. By O. MACHALA, L. DONNER and J, SVOBODA 219 Phage-like Structures from Lactobaeillus acidophilus. By H. C. DE KLERK and N. HUGO . 231 Virus Multiplication in Organ Cultures of Human Embryo Small Intestine. By A. C. STENHOUSE 235