1. Electron microscopic observations of young rat liver

   • Aldo Cecio

   OriginalPaper Pages: 717 - 742

2. Smooth muscle cells in aortic cultures of untreated and cholesterol-fed rabbits

   • Tatsuo Kasai
   • O. J. Pollak

   OriginalPaper Pages: 743 - 752

3. Endothelial cells and macrophages in aortic cultures of untreated and cholesterol-fed rabbits

   • Tatsuo Kasai
   • O. J. Pollak
   • Shigeo Nagasawa

   OriginalPaper Pages: 753 - 761

4. Die parakristallinen Körper in den Spermienschwänzen von Drosophila

   • Günther F. Meyer

   OriginalPaper Pages: 762 - 784

5. Observations on the ultrastructure of nucleated erythrocytes and thrombocytes, with particular reference to the structural basis of their discoidal shape

   • Don W. Fawcett
   • Frank Witebsky

   OriginalPaper Pages: 785 - 806

6. Ribonucleic acid transfer from nucleus to cytoplasm during interphase and mitosis in mouse somatic cells cultured in vitro

   • Valerio Monesi
   • Marco Crippa

   OriginalPaper Pages: 807 - 821

7. Peculiar intranuclear structures in sympathetic ganglion cells of a dog

   • Harunori Ishikawa

   OriginalPaper Pages: 822 - 828

8. Die Ultrastruktur des juxtaoralen Organs der Ratte

   • G. M. Salzer
   • L. Stockinger
   • W. Zenker

   OriginalPaper Pages: 829 - 854