Water soluble proteins in yolks of chicken eggs and Japanese quail eggs have been isolated and purified. The purified proteins were fractionated into four components respectively by ion exchange chromatography on carboxymethyl-cellulose column.
It was found that the chicken egg yolk and quail egg yolk were considerably different in their relative proportions of these four components.
On the other hand, little differences were found in the chemical and physical properties of water soluble proteins obtained from chicken and quail egg yolks as described below :
1. The chemical analyses showed that the water soluble proteins in chicken and quail egg yolks were the glycoprotein, containing galactose, mannose, glucosamine and sialic acid in its carbohydrate portion.
2. The disc electrophoretic patterns obtained from chicken and quail egg yolk water soluble proteins were very much alike.

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We reported previously that protease papain used in the cookery made some meat tender. In the present paper we further investigated cooking beef-rounds, whale meat and cuttlefish with the enzyme.
1. Beef-rounds :
In “Steaming, Baking, Roasting and Frying, ” seasonings had little effect on making the meat tender. Beef-rounds seasoned after the papain treatment were tender and tasteful.
2. Whale meat :
a. Whale meat treated with papain of 110-588 PU/ml had favorable tenderness.
b. “Frying and Baking” are good ways to cook whale meat treated with the enzyme.
c. The production of soluble peptide remarkably increased as the activity of the enzyme increased in the range between 110 PU/ml and 588 PU/ml.
3. Cuttlefish :
Cuttlefish was boiled and baked after being treated with papain of 74-185 PU/ml and then seasoned. The results showed tenderness as well as good taste.

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The reasons why the rice cooked with “Sake” (Japanese fermented liquor made from rice) is favored have been studied experimentally.
The rice was cooked with (1) water, (2) water and “Sake”, (3) water and soy-sauce, and (4) water, soy-sauce, and “Sake”, and taste, texture and flavor of the cooked rice were compared.
The organoleptic test showed that the cooked rice # (4) with “Sake” of 5% of water was liked best by the majority because of its good flavor. The flavor was confirmed by gaschromatographic analysis.
“Sake” adversely affected the rice in water absorption and impregnation. Therefore, the rice cooked with “Sake”, that is# (2) and# (4) above, was slightly firm in comparison with that cooked without adding “Sake”. This trend was detected by the taste panel and objective tests including gaschromatography, weighing of rice grains, and measuring of viscosity of the cooked rice.

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The correlation between the fatigue of the detergent solution due to succesive applications and resultant soil redeposition was investigated. The fatigue of the detergent solution was shown especially by the decrease of the active component in it and the change in its pH value.
The detergent solution was repeatedly employed to wash (A) -soiled shirts by home washing machine and (B) -artificially soiled cloths by Launder-Ometer.
1. The results of experiment (A) were as follows :
When the initial concentration of the detergent solution was low, the active component in the solution rapidly decreased. In addition, the soil redeposition on the test cloths, especially on polyester fabrics, was remarkable. On the other hand, there was no correlation between the change in pH of the solution and the soil redeposition.
2. The results of experiment (B) were as follows :
The amount of soil in the liquid detergent was controlled by changing the pieces of artificially soiled cloths in number (one, two or three pieces were used), and it was accertained that as the number of pieces of soiled cloths increased, the active component of detergent decreased and the soil redeposition increased.

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The adverse effects of air pollution have created many environmental problems in various ways. In order to examine the degree of soilage and deterioration in strength of cloth fibers due to the air pollution, a residential area which is subjected to little air pollution and an industrial area where the air is more polluted were picked out. Cloth fibers were held under a shelter on the roofs of four-story buildings located in each area, and the degrees of soilage and deterioration were comparatively studied for three months. The test cloths were made of cotton, woolen, ester, and nylon fabrics respectively.
The work has yielded the following results.
1. The difference in the degree of soilage of all fabrics between the two areas was great even at the end of one month. The difference at the end of each month was significant with P<0.001.
2. The degrees of deterioration of cotton and woolen cloths were the same in both areas until the end of the second month, but they became different in the third month with P<0.001. The difference in the degrees of deterioration of ester was significant both in the first and second months with P<0.01, and in the third month with P<0.001.
With nylon the difference was significant in the first, second, and third months with P<0.001.
3. The deterioration in the strength was less serious than the soilage, and it varied with the kind of fabrics

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We reported previously that girdles of different materialsand two sizes (S and M) had been made in the same design and put to the test. In the present paper, we investigated the feelings caused by wearing those girdles for ten hours by using a panel of ten persons. The panel was asked about the following items :
1. Feelings subjected to the waist, hip, and thigh by the girdle.
2. Feelings caused by motions while the girdle is worn.
3. Comprehensive judgement on the girdle.
We examined the answers numerically and statistically. Also the results were compared with the pressure measured physically. It is hoped that these results would serve as useful data in selecting the suitable girdle materialwise and sizewise.

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The pressure transducer for measuring the clothing pressure is desired to be small in size and sensitive to the low pressure. Two types of the pressure transducer, disc type and balloon type, were used to measure the clothing pressure on human upper arm and three different models, that is, rigid body (model A), elastic body (model B), and rigid body covered with elastic stuff (model C).
The results were as follows :
1. In the measurement by the disc type transducer, the pressure higher than actually applied was detected on the model A, and the lower pressure on the models B and C and on the human upper arm.
2. The pressure measured by the balloon type transducer on the model A was approximately the same as the pressure actually applied. The lower pressure was determined on the models B and C and on the human upper arm, but the fall from the actual pressure was much smaller than that obtained by the disc type transducer.
From these experiments it could be said that the balloon type pressure transducer is more suitable than the disc type one to measure the clothing pressure on human bodies.

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This paper reports how the stitch lengths vary with the thickness of the material which is sewn by machine. The thickness of the material was controlled by the number of pieces of the cloth from two to seven.
The effects of the feed-dog height, the thumb screw pressure and the tension of needle thread and bobbin thread on the length of stitches were also investigated.
The main results obtained are as follows :
1. The number of stitches per unit length increases in inverse proportion to the thickness of material.
2. To obtain the correct number of stitches per unit length, it is most effective to raise the feed-dog.

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In order to establish the method of indication of small differences in colors, it is desired to clarify the relation between the physical measurement and the visual test of the differences.
653 color specimens, having the same Munsell value and chroma of 6/6 with different hues, were prepared in our laboratory.
The spectral reflectance of each specimen was measured by spectrophotometer and the dominant wavelengths of all specimens were obtained. The hue discrimination thresholds which were obtained by a sensory test using a panel of nine judges were plotted against the dominant wavelength. Four color difference equations were evaluated based on the visual assessments.
It seems that the threshold value of the hue is affected considerably by the dominant wavelength. The Adams-Nickerson's equation of the color difference agrees most satisfactorily with our psychological scale.

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This study was designed to see the relationships between the children's dexterity evaluated by slicing cucumbers and shredding cabbages and their mental development, awareness of the difficulty of the work, and experiences in work of this sort at home.
The children who were subjected to this study were fifth and sixth graders of an elementary school. They were divided into two groups consisting of the fifth graders and sixth graders respectively.
The results indicate that :
1. There was low correlation between the skill in slicing cucumbers and that in shredding cabbages.
2. There was no correlation between the children's mentality and their dexterity.
3. The training had more effect on the sixth graders than the fifth graders.
4. The correlation between the skill in question and the children's awareness of the difficulty of the work was higher in the sixth grader group than the fifth grader group.
5. No correlation was found between the children's dexterity and their experiences gained in their homes.

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