Sun-en distrct consists of Suruga and Tôtômi provinces, and occupies the greater part of Shizuoka prefecture excluding Izu province. It is a part of the so-called Tôkaido Megalopolis. It is far from the Keihin and Chûkyo metropolitan areas and is not so highly urbanized as the suburbs of Tôkyo and Ôsaka. The increase rate of population in five years from 1960 to 1965 is 4.7%, which is not so high in comparison with 24.0% of Saitama prefecture and 28.7% of Kanagawa prefecture. The urbanized areas are confined to the surroundings of the main cities in that area.
There are three main centers of population, which owe to the accumulation of various industries. Those are Gakunan area, Sei-shin area (Shizuoka and Shimizu) and Hamamatsu area. These three industrial areas in Sun-en are very characteristic in the combination of industries and in the structure of the industrial areas respectively.
The Gakunan Area has developed with the establishment of the factories of paper since 1880's, Sei-shin area, whose centers are Shizuoka and Shimizu, has accumulated more people in the surroundings, but it differs from Gakunan area, for Shizuoka city is the administrative center of Shizuoka prefecture and Shimizu is the industrial center which attracted many modern factories since 1930's. Hamamatsu area in the westernmost part of the prefecture is famous as an old textile industrial area.
The accumulation of population in Sun-en District owe to the modern industrial activities in towns along the Tôkaido highway after the decline of their function as stage towns in Feudal Days.

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Along the coasts of Japan Islands there are many emerged shore platforms located 0-4 meters above the sea level. The writer studied the longitudinal profiles and analyzed their secondary lowering concerning several of those emerged shore platforms.
His observation covers the coasts of Odose, Awashima, Karagane, Hiradoshima, the southern part of Satsuma Peninsula, Hyuga-Aoshima and Nichinan (fig. 1). The platforms of Odose, Awashima and Karagane were elevated at the time of recent earthquakes.
The longitudinal profiles and the surfaces of emerged shore platforms are controlled by geologic structure and hardness of rocks, and are secondarily lowered by the weathering and the swashing. These platforms are classified into three types with distinctive features of the longitudinal profiles and the surfaces; Ia, Ib and II types (tab. 1).
Ia-types is remarkable with its concave profile, uneven surface and the seaward rampart. The surfaces of platforms of Ia-types are located above the high tide level. The features have been modified by secondary lowering after the emergence. The platforms of Ib-type have even surfaces between tide levels. II-type is remarkable for the seaward dip. Its feature had been controlled by the geologic structure and hardness of rocks before the emergence.

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In this paper are discussed the changes of the distribution pattern and the location of the printing and publishing plants in 55 years since 1911. They are summerized as follows:
1. In 1911-1930 the plants were distributed in the CBD core and its margin.
2. In 1941-1963 some plants were concentrated at the transitional zone and some of them sprawled into the outer zone.
3. After 1964 many plants were transferred to the Hakusan industrial area in the suburbs of Sendai in accordance with the policy of the city planning, and also from the necessity to expand their management scale.

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In August, 1966, the author made a trip to Korea and visited Seoul, Kamghua, Panmunjon, Puyo and Kyongju. This paper is his conclusion based on the observation in the trip and the revision of his former opinion as well.
1) The forest destruction, at least in the southern part of the Peninsula, is mainly due to divartation by human activity. The main actions of people are cutting the trees, digging the stub, burning the forest and tearing the grass cover for fuel. The author thinks that the vegetation can be rejuvenated in those waste lands because there are cases in which the vegetation recovered to some extent, when man's activities are suspended. One can see it on the hillside of demilitarized zone at Panmunjon where the people scarcely enter. 2) In some places the reforestation is interrupted by the erosion of gully which is mainly caused by intense frost and solar radiation in winter. This erosion is stronger in regions of granite than any other rock, while the rejuvenation of vegetation seems faster in regions of weathered slate or sand stone of Paleozoic. 3) The building of river beds above the level of the plains is a very rare case as far as the author observed, so he is convinced that the quantity of sand deposited in river beds is not so large as it has been believed. The waste produced from the denuded forest is transported to the lower courses of the rivers. This process is one type of the erosion by graded rivers generally observed in South Korea.

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The total acreage of the land reclaimed in Japan during the period of 1945-63 was 530, 000ha, and 69.2% of it was reclaimed by settlers, 135, 000 in number, who have moved into the reclaimed land, and the rest by farmers, 994, 000 in number, who have increased their cultivating land by reclamation. Both in acreage of the land reclaimed and in number of settler, Hokkaido and Tohoku districts are distinguished comparing with other districts. It was noteworthy that the farming of commercial crops developed in reclaimed land of these two districts in recent years. Such crops are the rice, some fruits and dairy farming. The trend to commercial crops accelerated the rearrangement of the Japanese agricultural regions.

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The Hebidaira settlement at the northern slope of Mt. Bandai, is under unfavourable conditions for farming such as cold climate and poor soils originated from volcanic mud-flows. The farmers carrying on ordinary field farming are so poor that they are in need of side jobs. In 1960, the farmers newly reclaimed about 10ha of waste land into rice fields and also constructed a reservoir as a new irrigation source. On the other hand, they abandoned their old upland-fields and rice-fields which were less favourable for farming. However, farm economy in the newly reclaimed rice-fields is not always prosperous. It is a different type from the cases of Showa settlement and Tobu settlement.

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Kamaishi and Miyako are two large cities in the eastern coast of Iwate Prefecture and are 55.4km apart each other. A survey was made at Yamada 28.9km from Kamaishi and 26.5km from Miyako. It is confirmed that the town of Yamada holds a service area of its own including Osawa, Orikasa and Funakoshi at an intermediate zone between the service areas of the two larger cities.

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