The land surface is covered by many kinds of land forms. They are usually classified morphologically or genetically, but not systematically. When we try to classify the land surface only according to the technical terms already named, we can find somewhere not to be able to be classified.
The author wishes to systematize the technical terms of geomorphology according to land form type. Each unit land. form covering the land surface is built up by several land forms parts. Land form part has only geomorphological meaning. Each land form type is built up by several land form parts and determined by the synthesis of four making conditions of (a) nearly the same time (b) nearly the same form (c) nearly the same genetics and (d) nearly similar materials.
The. differences between new and old ideas are as follows:
(l) Traditional. technical terms are mainly determined morphologically or genetically.
(2) In new idea one condition that each land form type is formed at nearly the same trine is added.
(3) Each, land form type is determined by the synthesis of four conditions. It is clear that a dissected fan does not belong to the same land form type as another fan newly made or now being made does. A dissected fan and a fan are grouped into the same land form family. Several land form types are grouped into land form. series according to the kinds of agency or environments of land form making. For example, fan, natural levee, delta made by the same river are sob jest to the same series. A land form area is builtup by several land form series.

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Inspite of the facts that this island lies in the centre of the sea, which is one of the richest fishing zones around Japan, and that the fishing here does not employ modern efficient methods and, therefore, cannot raise a large amount of products.
The method of fishing is primitive; diving, angling, net-fishing; and are produced boiled-dried-sardine and dried cuttlefish.
The above conditions may be ascribed to the following reasons.
1. With an increasing speed of fishing boats, this island came to be included into the circle, within which the boats of the mainland are engaged in fishing. And fishing products are carried away to the mainland without regard to this island.
2. This island, being narrow and flat, has very little hydroelectricity and does not produce enough ice for fishing industry.
3. This island has very small capital of her own and no investment at all from n the mainland.
4. All the fishing products go to the mining and industrial districts of Northern Kyushu, which are near this island.
5. Since the prices of sardine and cuttlefish are cheap, processed fishes are much more profitable as merchandise than raw fishes.

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In the upper region of -River Kanda found in the eastern part of the Musashino Upland which is overlaid with the Kwanto Volcanic Ash, the ground water-table slants toward the valley on both sides. (cf. Fig. 1) The discharge of this river in this area increases, though very gradually, as the river flows down. From these facts, we presume River Kanda is being nourished by the ground water.
At present, the slopes of the precipices forming the valley are different on both sides-the form of the valley is assymmetrical. Where the slope of the precipice is steeper on the north side than on the south, the ground water- table slants toward the north. Where the slope is, steeper on the south side than on the north, the ground-water-table slants toward the south. (cf. Fig. 6) Gathering up these facts, the author believes that the assymmetrical valley wall is related to the declivity of the water table.
The ground heaves up gradually in the vicinity of the valley. This seems to be due to the dampness of the ground and to the abundance of the vegetation in the valley region; that is, the darn press of the ground and vegetation protect the ground from the strong Musasllino winds seen elsewhere which blow away the dried mud and causes wind-erosions. If the valley were to be filled up, we would, obtain a convex ground feature.

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The author investigated the lake-current of Lake-Yamanaka in Yamanashi Prefecture in Japan by means of drifting bottles, ascertained the direction of the wind on the lake by observing the crooks at the tops of larch-trees and thus inquired into the relations between these two phenomena.
1) The lake-current was ascertained from the sixty four drifting bottles, the locations and times of discovery of which are known.
2) The investigation into the lake-current was made on the 4th and 5th of August, 1951, when an ideal prevalent-wind was blowing.
3) The crook at the larch-tree, top shows that from which direction the prevalent wind is blowing during May and June whice happend to be the period of their growth in this neighbourhood.
4) The results got from the meteorological observations at the Kagosaka Pass, at the Experimental Plantation Office of the Tokyo University and at Yamanaka Primary School by the lake are statistically shown in the figures 4. 5. and 6. The maximum error of 13° is found between these results and the results got from the larch-gees.
5) According to the statistics got at these meteorological observatories, the prevalent wind blows during half a year from April to September.
6) The results obtained by the author and his co-operators are shown in the figures 2 and 3. The main points are as follows;-
(1) A strong south wind which has been weakened when blowing over the Kagosaka Pass blows down upon the surface of the lake and makes a wafted current over the lake, which becomes the main lake-current.
(2) The main lake-current causes two big circulating currents, one winding rightward on the east side just as when you wind up a clock and the other winding leftward on the west.
(3) In the eastern offing of Nagaike (a village) on the northern shore of the lake, where the main current is divided into two circulating currents…… one on the left side, and the other on the right……, the wind also shifts its direction both towards the east and towards the west, the same directions as the lake current move. This change of direction is more striking on the western side.
(4) The lake current moving eastward ahead of Omama Promontary seems to be caused by the south west wind near here.

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