Changes of pectic substances in polished rice from insoluble into soluble by soaking, heating and cooling the rice were investigated. Carbazol method was applied to the study. The following results were obtained.
(1) The total pectic substances in rice was 0.44% and the insoluble pectic substances was 0.22%.
(2) Dissolution of the insoluble pectin by soaking rice required two hours which agreed with the time necessary for rice to reach the saturation with water. When the rice is drained on a basket after being washed with water, the dissolution of pectic substances was greater than that in the rice which had been soaked in water for the same time as draining.
(3) Dissolution of the pectic substances in rice continues during the course of cooking, and stops when the rice is removed from heat. No further change in pectic substances is observed with cooled rice.

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Experiments were carried out to find the suitable proportion of ingredients of Atsuyaki Tamago and the proper method of baking when a square cooking pan and an electric oven were used together.
The ingredients of Atsuyaki Tamago are egg, ground fish meat, soup stock, sugar and Mirin (sweet Sake). Twenty-seven Atsuyaki samples with different proportions of ingredients were prepared.
These samples were poured into a square cooking pan preheated at 240°C and kept for 30 seconds, then baked in the electric oven at 180°C ± 5°C for 20 minutes.
Moisture, seeped out water by pressure, jelly strength and softness of these baked samples were measured. Also the sensory evaluation of appearance, color, taste and easiness of rolling was made.
As the result, the best proportion of the ingredients was : ground fish meat and soup stock were 30% and 20% or 40 % and 30% of egg weight, respectively. Sugar and Mirin were 10% of the total weight of egg, ground fish meat and soup stock. Salt and chemical seasoning were 0.8% and 0.06% of the total weight of all materials, respectively.

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In order to observe moisture transfer characteristics of hydrous fibers used for next-to-skin wear, dry and moist pieces of felt cloth with different packing factors (P. F.) were examined.
1) There is some regular relationship between the hygroscopic amount and P. F. The sample with larger P. F. shows larger increase in the hygroscopic amount.
2) There is also some regular relationship between the amount of moisture transition and the air permeability. The sample with larger P. F. has smaller increase in the amount of moisture transition.
3) For dry samples, the hygroscopic effect is larger than moisture transition effect, and so the sample with larger P. F. shows larger total amount of moisture transfer.
In moist samples, there is a difference in the relations between P. F. values and hygroscopic quality and P. F. values and moisture transition. But the amount of total moisture transfer is almost constant for all P. F. values.

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We have been much interested in colors recently. Many colorful things are found in various fields. They enrich our life. We have, however, to investigate color not only from a viewpoint of feelings, but also from a viewpoint of human engineering ; problems of safety, efficiency, fatigue, and relaxation should be taken into consideration.
This investigation is concentrated on fatigue of the Kräpelin work. The degree of fatigue is shown by F. V. (flicker value).
(1) f (mean fault) and n (rate of initial effort) of the work depend on the degree of fatigue immediately before starting the work.
(2) Those who participated in the test stared the surrounding color in the testing room for five minutes under a specific light, and flicker values obtained before and after the staring were compared for different colors and lights.
Fatigue was most with the day fluorescent lamp and least with the white fluorescent lamp. The day fluorescent lamp also made f and n values worse in the Kräpelin work.
(3) The comparison between flicker values obtained before and after the work, including staring and Kräpelin, disclosed that the incandescent lamp caused the greatest fatigue in white surroundings. This must have been derived by the interrelation between brightnesses of the sheet of Krapelin work and the lamp.

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The most difficult part in the process of dress making is fixing sleeves. The final aim of our research is to evaluate the properties of cloth numerically so that we can decide the proper size of sleeve armhole in connection with a given body armhole, and make the diagram which shows the relation between the numerical values of cloth and the difference in size of both armholes.
We have found that the difference, which we call margin amount of sleeve, depends entirely on how much the cloth can shrink.
Cloth cannot shrink in the warp and weft directions, but can shrink in the 45° or 135° bias direction.
Bias cloth, 2 centimeters wide and 10 centimeters long, was used for our experiment and was pulled by various test loads. For each pull the elongation and the width reduction were measured.
We have come to the conclusion that there is very close interrelation between the proper margin amount and the contraction or elongation of cloth in the bias direction. Especially the elongation is a kind of the parameter which shows the exact numerical value of not only the margin amount but the flexibility of material which is useful for three dimensional clothing construction.
Accordingly, as one of the most effective pieces of information about the properties of cloth, we propose that this bias elongation should be indicated as well as the quality of the fiber.

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It is a common understanding that if the needle cuts threads of the material while sewing, the seam has deteriorated appearance, and the more the damage is done, the weaker the seam is.
We have studied the relations between stitching and damage on threads of the material with the slant needle sewing machine and the ordinary sewing machine. The results obtained are as follows :
1) Threads were more damaged by the size # 14 needle than size # 11 one. Also the slant needle sewing machine did more damage to the fabric than the ordinary machine.
2) Negative correlations were found between damage on threads and effectuation of the sewing.

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From the viewpoint of the clothing construction, we measured the girls, living in Tokyo City (A) and in a village in Nagano Prefecture (B), over three years as they grew from 6 years old to 8 years old. The measured items are stature, lower limb length foot length and head length. The results obtained are summarized as follows :
1) For all ages A are remarkably bigger than B in all measurements, but there is little difference between growth rates of both groups.
2) In A the curves of the individual growth gather around the average curve while in B they gather in somewhere lower than the center of the distribution.
3) We have classified stature and lower limb length into three groups (large, medium and small) on the basis of the stature of 6-year-old girls. There is little difference between the growth rates of these three groups.

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Those who wear uniforms are much interested in design and color of the uniform. What shades of color do uniforms have? How fast are those colors? Searches are made for knowledge of these points.
The relation between user's preference and fashion is investigated. Fastness of the color is measured by means of colorimetry.
It becomes clear that there are only several shades of color in uniforms independently of fashion or user's own likeness, except for a few special colors in fashion. It seems that the fastness is an important factor in the selection of color. But white or light colors have problems that they are less fast by nature.
In conclusion, the authors emphasize that colors of the uniforms must be selected taking user's comfort and fastness of the color into consideration.

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The causes of misfits of nylon hosiery while being worn, especially sagging and twisting, were discussed experimentally. Our attention was paid to the four conditions of how hosiery was worn. They are as follows : the length of the clasps of the girdle, the positions of the clasps which hold hosiery around the circumference, the positions of the clasps in the welt and the amount of lengthwise stretch of hosiery.
The amount of sagging was measured by the slid-down length of a circular line on the hosiery around the knee. The amount of twisting was measured by the length of twisted portion of the hosiery times the width slid from a vertical base line along the leg. The experimental results obtained by the method of four dimensional analysis of variances are as follows :
(1) The shorter the length of clasps is, the less the misfits are made.
(2) The amount of the misfits is relatively small when hosiery is worn without strain.
(3) The amount of the misfits depends on the positions of clasps around the circumference of hosiery and in the welt.

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In the previous reports on the time budget, it was made clear that married women who have jobs work more hours than wives who do not have jobs, and moreover the former has to do domestic duties on holidays. Practically there are no holidays for them.
Recently, more married women tend to work out for their living, while it has become harder to find domestic helpers. The present investigation aimed to clarify the state of such couples' fatigue.
It has been concluded that the subjective symptoms are observed more evidently in the evening than in the morning and more on weekdays than on holidays, and their significant differences are obtained with wives who have jobs.
A comparative study of subjective symptoms of fatigue on four different subject groups-husbands whose wives have jobs, husbands whose wives do not have jobs, wives who have jobs, and wives who do not have jobs-shows that such symptoms are observed most frequently in wives who have jobs, and least frequently in wives who do not have jobs.

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