In 1935 we1 reported on 16 patients with renal amyloidosis for whom a clinical diagnosis had been made during life and had been verified by postmortem examination. These patients had been observed by us over a period of two to eight years, their records were reviewed and the data were tabulated with regard to the type of tuberculosis in which renal amyloidosis occurs, the likely precipitating factors, the urinary findings and renal function, the blood pressure, the physical findings and the condition of the eyegrounds, together with pertinent necropsy data and information regarding the distribution of amyloid in the kidney. In this way we attempted to portray the clinical life history in cases of renal amyloidosis as it occurs among patients with tuberculosis. In this paper we are reporting on 41 additional patients with renal amyloidosis. Five of these belong to the aforementioned group, making a total of 21