The time trend analysis of fertility from 1950 to 1979 in China was carried out by employing two-phase regression lines. The nation-wide fertility sampling survey in 1982 provided the data of Total Fertility Rates and Age-specific Fertility Rates, which formed the basis for the present analysis. A certain body of literatures proposed a persuading stage classification for a series of population policies administered in the People's Republic of China since 1949. The present fertility analysis was linked with the proposed stages as shown below. 1) 1949-1956 the period of non-particular population policy 2) 1956-1958 the period of the first provision of birth control policy 3) 1958-1962 the period of the Great Leap Forward Campaign 4) 1962-1966 the period of the second provision of birth control policy 5) 1966-1969 the period of the Cultural Revolution 6) 1969-1979 the period of the third provision of birth control policy 7) 1979-the period of the fourth provision of birth control policy Comparing the three population policies administered by the year of 1979 in connection with the fertility, we recognized the periods during which birth control policies were administered synchronized the changing trend of fertility. The time-event relationship was most remarkable in the third provision of birth control policy. However, in the first and second provision of birth control policy, the mentioned relationship was obscure.
In the first report of this series the author has described the relationships between the numbers and the weight of garments and the complaints on warmth of daily wears and working clothes in June of Akita area. This report deals with those relationships above mentioned in four seasons in the same area. The results are as follows: 1. As for the subjective complaints, fewer people judged as comfortable in all the senses of warmth, humidness and comfortness about the outdoor garments than those of indoor clothings. 2. Coolness of body parts were complained in the order of feet, hands and faces. However, these complaints decreased as the temperature increased. 3. In the cold season of February, characteristic feature was seen in wearing the same kind of clothes one over another in those of underwears, underpants and socks. 4. As for the relationship between the temperature and the feeling of warmth, people who responded as?gcool?hin wearing outdoor working clothes, they seemed to be tend to feel cool than others judged from the regression line. On the other hand, they wear less clothes indoor in every categories of senses compared to those of outdoor. And they seemed to wear thinly in accordance to temperature increase judged by steeper inclination of the regression line.