RT Journal A1 Ores RO T1 THe foot process of the renal glomerulus JF JAMA JO JAMA YR 1969 FD June 2 VO 208 IS 9 SP 1706 OP 1706 DO 10.1001/jama.1969.03160090066028 UL http://dx.doi.org/10.1001/jama.1969.03160090066028 AB To the Editor:—  For seven years I have been interested in the ultrastructure of the kidney and my work has been rewarded with a finding that I would like to share with the readers of The Journal. I have discovered why the cytoplasmic extensions of the epithelial cells in the glomeruli are called foot processes. One can see this clearly from the electron micrograph (Figure).In future work I shall endeavor to find the rest of the lady.