1. 今日のわが国漁業中母船式捕鯨業についで高度化し,技術的にも社会経済的にも工場工業制的段階に進んだ以西底びき網漁業は「舶来=移植漁業のトロール」および「在来漁法が漁船動力化によつて発展した自生的純日本漁業の機船底びき網(手繰)」という系譜を異にする両漁業で構成され,前者は最初から近代資本主義的に経営されてきたのに対し,後者は舟主的(マニユ的)経営から出発した.両者は同一漁場で同一魚種(底魚)を類似の漁法で採捕し競合関係にあるが,技術的・経済的などの理由で後者が完全に前者を圧倒している.
2. 以西底びきの主体をなす手繰にも出雲型と阿波型の発展過程を異にする2系統があり,前者はトロールの場合と同様に,固定給を主とする近代的賃金形態をとるのに対し,後者は現在も歩合制・漁撈長制をとり,経営形態に半封建的=前期的な要素を多分に残存する.
3. 最初栄えた根拠地は下関・長崎と,漁場に近い五島とであつたが,船体・機関の大型化・ヂーゼル化などの技術的進歩・流通事情・資本主義の発展にともなう大資本への集中などの諸条件によつて,漸次漁場的離島根拠地は衰え,流通的都市根拠地が発達してきた.
4. 敗戦による転換資本の進出,漁場の縮小・李ライン設定による漁場喪失,遠距離迂回の強制・築港・出荷事情・都市の性格，政策・漁場荒廃にともなう減船整理，だ捕・経済変動を通じての独占資本の強化および大資本間の性格相違などの諸条件がからんで，大基地・大資本の発展,小基地・小資本の衰退傾向が最近いちじるしい.
5. 4大根拠地間では出雲系に属する下関・戸畑が停滞ないし漸減的,阿波系の長崎・福岡は漸増という対照的な勢力変動傾向がみられるが,これは地理的位置(漁場・市場)や漁港施設などの単なる技術的観点からは説明不可能の現象で,社会経済的な地域差・歴史的発展過程の差異によつて規定された経営形態の相違(歩合制と固定給制)に強く影響され,阿波型に残存する前期的諸関係を利用して最大限の利潤を追求しようとする資本本来の意図をも多分に反映した結果と考えられる.

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When I made a study on the alluvial plains of Japanese Inland sea, Setonaikai, I perceived that the depth to the basal gravel bed beneath the delta plains corresponded to the river system of the period of the lower sea-level. So I tried to trace the surface of the gravel bed in the bottom of that sea, to inquire into the time when it took shape and to restore the river system to the original state. For these purposes Im de an analysis of its marine topography.
(1) Its topography is very complicated, but generally it is divided into two. One is called Nada (open sea). Judging from the accumulative depth percent of Nada (Fig 2) we can find the fact that the depth of each part already corresponds to the river system. But in this case, we cann't estimate its true depth for continuing of heterogeneous mud deposition.
(2) The other is called Seto which is composed of straits, which have many corraded topography as caldron (Fig 3• 5•7) So we know the depth its surface there. Its depth is deeper than that of mud and shallower than the maximum of gravel in chart. (Fig 6)
Using the result of these observations, we can trace its surface in a state of considerable stretching from delta to the occean. In view of the results so far achieved, I grasped the following facts:
(3) The gravel surface of delta and caldron, and continental shelves of occean lie on the same topographical surface in the period of lower sea-level which seemes to be of Würm ice stage:. (Fig 8•9)
(4) There is a drowned valley in the bottom of Nada where homogeneous deposition continued (Fig 10). The drowned and burned river system is estimated as Fig 11. According to these facts Setonaikai resembles the Sunda Sea concerning the topography of the shelves. The difference is that in the latter there are such islands as Bangka and Billiton.
(5) It is conjectured that in this period there must have been slight and local climatic topography for its surroundings.

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The writer has studied the process by which the city functions, developing towards the urban fringes, incited the urbanization of suburbs. Special hospitals for the patients of such diseases as tuburculosis, mental disease and infectious diseases seek their sites in the suburbs of the metroplis, because there they can get capacious grounds, quiet environment and fresh air. When we see the distribution of the special hospitals in Tokyo, we find that most of the newly established hospitals are situated in the urban fringe, and some of the older ones built in the inner region, have removed centrifugally to the outshirts.
Kiyose town is in the western suburbs of Tokyo, and on the Musashino Upland. It was formerly a farm-village, , but since 1331 many tuburculosis hospitals have been established in the pine forests of the south-western area of this town, and so Kiyose has become one of the largest hospital quarters in Japan, having 14 hospitals, 4, 821 beds, and 25% of its whole ares is covered by hospitals. Consequently, the population increased rapidly and the shopping street developed between the, hospital quarters and the railway station. Moreover many residential houses were recently built, and this town has also grown into one of the residential districts of Tokyo.
Through the study of Kiyose and some other hospital quarters in Tokyo, the writer has come to the conclusion that there are some grades in the relations between the special hospitals and the urbanization in the metropolis. The grades are as follows: (1) Special hospitals were first established in the innermost region of the metropolis, but with the development of the metropolis, they moved to the outer regions, or were turned into general hospitals.
(2) In the region next to the former innermost region of the metropolis, the hospitals which were established in the days when the region were the suburbs are now in the residential districts which have developed since their establishment.
(3) In the next region, urbanization is in advance, and there the hospital quarter and the residential district are contiguous to each other.
(4) In the outermost region of the metropolis, hospitals are situated apart from other establishments, and the residential district has not advanced into this region yet.
Kiyose belongs to the third grade.

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