Two glycoproteins (BGP-I, BGP-II) of low molecular weight were isolated from 40% isopropyl alcohol-soluble fraction of wheat bran by gel filtration on Sephadex G-100 and column chromatography on DEAE-Sephadex A-25. BGP-I and II were confirmed to be composed of protein and carbohydrate by gel electrophoresis and gel filtration. The molecular weights of BGP-I and II were approximately 16, 000 and 14, 000, respectively, determined by gel electrophoresis in the presence of sodium dodecyl sulphate. BGP-I contains 67% protein which is rich in aspartic acid, glycine and alanine, whereas BGP-II contains 44% protein which is rich in glycine and histidine, and contains no phenylalanine and tryptophan. Since endosperm does not contain these components, an electrophoresis run on a given flour sample may serve as a method which can determine the amount of bran contaminated in flour.

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The changes of the vitamin B₂ content of “Ika no Shiokara” (salted preserves of squid) during preservation were examined, and its content decreased a great deal at the early stage of the preservation of Kurozukuri-black colored, preserved with the squid's ink. A similar result was obtained when the squid's ink was added to a solution of vitamin B₂. The cause for these results was presumed in the previous report to be attributed to a hemocyanin-like protein, and in order to make clear the relations between hemocyanin and the decrease of vitamin B₂, we examined the effect of hemoglobin on the changes of the vitamin B₂ content, as hemoglobin had the similar components as hemocyanin. The result showed that hemoglobin also decreased vitamin B₂, and proved that this effect was due to heme group but not globin. And the bubbling of carbon monoxide into hemocyanin, hemoglobin and ink solutions made them lose the ability to decrease vitamin B₂. Also the bubbling of oxygen into vitamin B₂ solution decreased vitamin B₂.

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Ten kinds of flame retardant fabrics, the same as those used for the investigation reported previously, were successively examined herewith for smoke, CO and CO₂ produced simultaneously with burning, from the standpoint of safety for the human body. The results are summarized as follows :
1. Concentrations of smoke, CO and CO₂ showed a marked reduction at 8-10% of each retardant content and also with the fabrics having 28-30 % LOI value. These results entirely agreed with those observed at the critical content of each retardant for the sufficient flame retardancy shown by the burning test as described in the previous report.
2. Unfinished or insufficient flame retardant fabrics showed lingering detection of CO and CO₂ in the environmental air, while for those having sufficient flame retardancy, detection stopped within 1-5 min indicating the self-quenchability.
3. Among the retardants tested in this report, a mixture of boric acid and borax gave the best results in every case and was the most recommendable retardant for general domestic use from such standpoints as flame retardancy, availability, safety and handiness.

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A study on sliding phenomenon of a mat on the other carpet was studied. The mat moves when a man walks over the mat placed on the carpet. This slide phenomenon of the mat has relation with physical properties such as kind of materials, frictional coefficient, length of pile and inclination of the pile itself.
The 12 different types of the carpets which have different properties were used as samples for the experiment. In this experiment the slide lengths of the mat putting on the carpet were measured.
The results of the experiment are as follows :
(1) The smaller the carpet density of the pile, slide length is larger.
(2) The smaller frictional coefficient and the longer the pile length, the mat is more slide.
(3) The mat on the carpet which has cutted pile is less slide.
(4) The larger the pile density, the mat on the carpet is less slide.
(5) The mat on the carpet which has looped pile is more slide.

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In order to appropriately design the swing angles of ragran sleeve, a sensory test was carried out on the visual fitness for the test wearers evaluated by a group of panel members.
The results have showed that the degree of the agreement between the swing angle to the vertical line of the upper arms of the test wearers and those of the weared ragran sleeves well corresponds the visual fitness thus evaluated.
Especially, as far as the test wearers whose forms of the upper arms fairly deviate from standard ones are concerned, a more remarkable correspondence is established.
In conclusion, for suited design of ragran sleeves, it should be necessary to adjust the difference between front sleeve angle and back sleeve angle to the angle of the upper arm swing of the wearers.

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In general, principal component analysis (PCA) is considered an effective procedure to reduce complex information composed of numerous characters to a few incorrelated synthetic groups. The method of PCA on somatic measurements is, however, not established yet. In this report, height and weight, the most commonly used items in somatometry, were examined to clarify the effect of selection of measurement items on PCA.
Materials were 500 boys of age 7, measured in 1966-1967 for their height, weight, posterior arm length, iliospinal height, tibial height, foot length, waist length, posterior shoulder length, neck base girth, bust girth, waist girth, hip girth, scapular and triceps skinfold thickness. PCA was applied to correlation matrices based on all of these 14 items (complete case), on 13 items excluding body weight, and on 12 items excluding height and weight. The conclusions are :
1) Coefficients of determination in each component following PC2 were larger in weight excluding case than in complete case. Eigenvectors and factor loadings in the first three components were also larger in weight excluding case.
2) Excluding both height and weight, eigenvalues became lower while coefficients of determination in PC1 and PC2 became heigher than those in case excluding weight solely. For eigenvectors and factor loadings, all variables in each PC were more loaded in the same way. Therefore, the interpretation of each component became much more easy.
3) From these results, we conclude that height and weight are preferable to be excluded from the item selection in PCA. For the reason that both of them represent total body mass measurement having common information with other variables, they reduce the effect of interrelationship between others.

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As to dairy farming, Hyogo stands at the top of the prefectures in Western Japan and the fifth in all Japan. The life-pattern of dairy farmers' wives is different from that of ordinary housewives and characterizes the dairy farm household. However, there are many problems arising from this, and we made a fact-finding survey so as to search for the causes of the difficulties dairy farms have in common, hoping to get a clue to the problems.
The survey showed that there are problems in the routinized dairy life of the family members. The following suggestions are made to improve the situation toward attractive dairy farming business : decrease the working hours of the housewives, increase household care, promote healthy food and clothing, and finally, rationalize dairy farming. Also they are advised to learn agricultural book-keeping by utilizing their leisure time.

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[in Japanese]

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