1. Porter, K. R., and J. Blum: Anat. Rec. 117, 685 (1953).
2. Rhodin, J.: Correlation of structural organization and function in normal and experimentally changed proximal convoluted tubule cells of the mouse kidney. Stockholm, Karolinska Inst., Dept. of Anatomy, 1954.
3. Peachey, L. D.: J. biophys. biochem. Cytol. 4, 233 (1958a).
4. Bennet, H. ST., N. J. Schaal, J. S. Quinton, J. S. Reddie and J. H. Luft: EMSA-Meeting, Santa Monica, USA; Abstr. B/23 (1958).
5. Latta, H., and J. F. Hartmann: Proc. Soc. exp. Biol. (N. Y.) 74, 436 (1950).