THE NON‐HAEMIN IRON IN THE CEREBRAL CORTEX IN ALZHEIMER'S DISEASE

0 1 0 2 0 3 0 ~ 5 0 6 0 7 0 8 0 9 0 ~ 0 Y FIG. 1 .-Non-haemin iron in the prefrontal cortex. The open circles in Figs. 1 and 2 reprtscnt normal cases and the filled circles casea of Alzheimer's di-. The calculated regtssion line for the normal cases has been drawn unbroken, the dotted lines denote the S.E. of estimate. pattern. The highest concentrations were found in the motor cortex, lower concentrations being present in the occipital, sensory and parietal cortex in that order. The lowest figures were obtained for the prefrontal and temporal cortex. An increase in .