McCarrison regards the term "polyneuritis" as applied to the morbid state resulting in pigeons from an exclusive dietary of autoclaved rice as a misnomer, since it suggests that the nervous tissues are exclusively or mainly involved in the pathological process, whereas no organ or tissue escapes injury under such a dietary regimen. The glandular organs and the organs of digestion are more seriously damaged than is the nervous system. The morbid state resulting from (among other things) lack of what has been called the anti-neuritic vitamin, is not in reality a neuritis, and the term "anti-neuritic" is inaccurate. He regards the term "vitamin" inapt. He conceives the nutrient principles in the class which now generally passes under this term as "certainly nuclear ingredients essential for the nutriment of the living nucleus. They are 'nuclear nourishers' without which multiplication of cells does not occur. The term nucleopast (that which feeds the nucleus) might well be applied to them."