NEWER ASPECTS OF NUTRITIONAL ANEMIA.*

Nutritional anemia is a deficiency disease belonging to the physiological types of anemia. Abderhalden (1) in 1899 was the first to demonstrate this type of anemia in white rats fed a sole milk diet. Bunge (2), a year later, showed that milk was notoriously low in iron content. Nothing of value was developed in this regard until Hart (3) in 1925 reported the remission of the anemia by the feeding of iron and copper. He further stated that inorganic iron alone was ineffective, and that green plant material, an alcoholic extract of this material, or chlorophyll itself was essential for the assimilation of the iron. Hill (4) is also of this opinion. Beard and Myers (5) in 1931 showed that copper was not a necessary adjunct for the assimilation of iron in opposition to Hart's earlier claims. Beard and Myers further stated that other metals (nickel, germanium, arsenic and zinc) woul