Miss E. V. (nurse) had been in California, where the diagnosis of pernicious anemia was made. Oct. 10, 1911, the blood examination showed a typical picture of pernicious anemia, with great numbers of megaloblasts, and all the other concomitant features. The red-cell count at this time showed 887,000. Physical examination was negative, except for slight cardiac dilatation. The patient had had large quantities of iron and arsenic before reaching the city. Oct. 10, 1911, 0.3 gm. sal varsan in sesame oil was given in the gluteal region by Dr. Tauber. This was repeated October 18. Hypodermic injections of cacodylate of iron, gr. 1, were then begun and were administered on alternate days, twenty-seven doses being given. The patient's improvement was rapid and, as can be seen from the table, she now presents no evidence of pernicious cachexia. Her diet has been meat-free with large quantities of buttermilk. The blood-picture is