(1) 小松葉, 菠薐草の各部位の鉄の含量を定量し, 葉部に多いことを認めた。(2) 小松葉の葉部から水及びアルカリで抽出される鉄は, 約45%であつて, その中25%はアルカリ可溶部に含まれ, 流水透析によつて, 膜外に出る鉄は, 約53%であつたが, CCl_3COOH処理によつて有機形態と考へられる鉄は, 約78%存在した。(3) chloroplastと考へられる部分に約20%の鉄を含有してるた。(4) 穗孕初期より枯熟期に至る迄の, 水稻各部の鉄及びchlorophyllを定量した結果, chlorophyllは漸減し, 葉, 莖, 根の鉄は開花時に順次穂に移動して行くことを認めた。(1) I have determined the quantity of iron in the every part of Komatsuna and Spinach, and realized those lieves contains much quantity of iron. (2) I have realized the iron which is extract from leaf of Komatsuna is 45%, and 25% of them is contains in alkali soluble portion and 53%-iron produce from membrane by mean of dialysis and 78%-iron is seem organic form by the treatment of CCl_3COOH. (3) I have realized 20%-iron is contains in the portion of chloroplast (to be think so). (4) I have realized by determination of iron and chlorophyll of the Or za Sativa L. on various kinds of period of growing chlorophyll is gradually decrease and the iron of leaf, stem and root moves to ear by degrees at the time of blossom
