From the light of the foregoing, the aborigines including Peipofan are the first race in Formosa scattered on the outset, around the entire Island. Until recently, they practise the primitive scale of life, preserve what it is in the great nature. They received protection from various stages of Authorities. But due to the fact of environment or background and the struggle of existence with the Chinese race they were forced confine into a certain spots behind mountains that made their economics. education, and health aspect in a backward phenomenon and the population rather undeveloped. The aborigines, however, are a fine race especially of their speeches, music and physical training in which they have superior abilities, the social constituents as well. They possess good customs and traits. We should therefore sympathize and encourage them to uphold whatever they have of their own pride, and culture until the prosperity would approach upon and equality would prevail among them, so that to build up their healthy and beloved country and the well-being of mankind.

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Most of the radiobiological protectants reported in the past are effective when they are given during or just before irradiation, or when given in seriously toxic doses. Therefore, they will be of little value for practical use. On the view point of homeopathy, some positive results were reported in this field. But it should be avoided to use radiation as a pretreating agent because of its deleterious cumulative genetic effect. Stokinger et al. had discovered a phenomenon of “cross-tolerance” among ozone, nitrogen dioxide, etc. Ozone is known to be radiomimetic. So, we attempted to use ozone as a prechallenge treating agent.
A tolerance to x-radiation was rapidly developed (within 24 hours) by subjecting mice previously exposed to 1ppm of ozone for only one hour. Dose reduction factor at LD₅₀ was about 1.3. This tolerance lasted for at least 10 days and disappeared at about 50th day after exposure to ozone. These pretreated animals had no significant changes in body weight and blood picture, and they could swim for a long time equally as controls. This radiotolerance has such advantages as rapid development, long duration and good preservation of physical strength. This experiment may promise a future progress in the field of radiobiological protection.

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The present study was undertaken to explore the possibility of using the records of clinical histories of in-patients as a source of health statistics.
Analysing the records of clinical histories of 1, 977 pediatric in-patients who were discharged from three large hospitals in Kyoto, Japan in 1959 and 1960, the following results were obtained.
1) In-patients are seemed to be a fairly unbiased representative of the population of serious cases. So, classification of illness, condition on discharge, duration of stay in hospital, age and sex observed on in-patients will provide the useful estimate about that on the population of serious cases.
2) The feature of in-patients in each hospital is some what variable from hospital to hospital. So, in order to get the unbiased information on in-patients in some district, investigations on two or more hospitals in the district will be necessary.
3) The clinical histories of pediatric in-patients seem to contain many items which are very useful as a source of health statistics. Especially, past history of measles and whooping cough, family history of tuberculosis and neoplasms, records on vaccination, and other records on state of birth, on infant feeding, on family size will certainly make valuable data for health statistics.

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The fire men in the fire brigade stations in Tokyo are laied down in duty for 24 hours each time. With frequency of fire- and traffic-accidents, they are forced to work more than the hours of their duty. The subjects of observation are 150 fire men in the Hongo Fire Brigade Station of the Tokyo Fire Defense Board. The study on the labour condition and the mental or physiological function was carried out from July, 1961 to March, 1962.
In this paper are described the results concerning the outline of the labour conditions and the mental or physiological functions of the fire men under the hours of their duty as mentioned above.
From these results the authors assumed that an influence of the continuous mental tension upon them was unexpectedly obvious and a management in supply and demand of the nutrition was insufficient. Furthermore, it was expected that these labour conditions would have hastened a development of the cardio-vascular unsoundness in the fire men.

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