European nephrology is flourishing and the proceedings that make up these books bear witness to this. These volumes and their companion pieces, the Transactions of the American Society for Artificial Internal Organs, keep the practicing nephrologist abreast of current research both clinical and technical. The 1972 association meeting was held in Florence, and it is heartening to note that 38 of 324 authors came from the United States.
The papers cover a large variety of topics ranging from the (as yet imaginary) middle molecules to osteonecrosis in transplanted patients. Heresies like sodium dialysis are presented cheerfully. Giordano gives the first invited lecture on amino acids and diet in renal failure. The occasional paper in French provides a chance to sharpen language skills rusted by disuse. The discussions that follow each paper are often wonderfully funny examples of British understatement of vigorous disagreement. In any event, the general internist may choose