“…The histological appearances have been fully described elsewhere (Dempster, 1953 ;Darmady et al, 1955;Kiiss et al, 1962;Hamburger et al, 1963;Murray et al, 1962Murray et al, , 1963Porter et al, 1963 ;Calne et al, 1963). In the first group the outstanding changes have been necrosis of the tubular epithelium of the first part of the proximal convoluted tubules, and later spreading to the remainder of the tubule.…”