本稿は繁野三郎（1894–1986）の図画教育に注目し，自由画運動が北海道の小学校教師に与えた影響について報告し，考察するものである。繁野は大正4年（1915）に札幌師範学校を卒業後，大正9年（1920）まで栗山尋常高等小学校（現在の夕張郡栗山町内）に勤務し，その後昭和5年（1930）まで札幌北九条尋常高等小学校に勤務した。大正5年（1916）から翌年にかけて繁野が教育雑誌に投稿した「現代的毛筆画帖取扱案」と，教育雑誌が伝える昭和2年（1927）の繁野による図画の研究授業，同年に札幌市役所から発行された『図画教育の理論と実際』における繁野の執筆箇所を分析した結果，資料に示される繁野の考え方が二つの時期において異なることが確認された。約10年間の繁野の取り組みを探るなかで大正後期に発行された『

』を調査した結果，繁野の勤務校をはじめとする札幌市内の学校が自由画展覧会に熱心に応募していたことが確認された。

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石狩川治水の基礎を築いた岡崎文吉の治水思想は、岡崎自身が「自然主義」と自ら称した、自然の蛇行河川の特性を保護し、かっ応用しようとするものに集約される。これは洪水防御と同時に舟運を増進するため、河道の澪筋の維持を重視したもので、水衝部を保護し、河道の安定化を図るためのコンクリート単床ブロックの開発を伴った。また石狩川の改修計画に於いては、洪水のみを分岐させる放水路を用いて、自然の低水路の維持と洪水氾濫の防止の両立を図っている。
この背景には、
(1) 当時の石狩川の舟運が活発であったこと。
(2) 石狩川自体が全くの原始河川に近く、当時の経済力や機械力に見合った施工では、実施による弊害を克服できないと考えられたこと。
(3) 岡崎文吉が海外視察を行ったころの欧米では、河道切替による舟運への悪影響等から、フランスを中心に自然状態の流路形態を重視する理論の主張が強まってきていたこと、などの状況があったと考えられる。
しかしながら大正6年に至り、岡崎文吉自らが、「石狩川治水事業施工報文」の中で放水路案から捷水路案への変更を報告している。
これについては維持土の問題等いくつかの理由が考えられるが、結果的に石狩川の治水対策は洪水調節や河道維持の面等から大きな成功を収めている。この変更により、岡崎が当初理想とした自然主義は、一見生かされることなく終わったように思われるが、砂州の形状を考えた河道計画などの岡崎の思想は、現在の改修にも示唆するところが大きく、現代の石狩川に生き続けているといえる。

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Since Helset was invited from Norway as the first ski instructor in Japan in 1929, Japan's ski level has improved significantly. This paper clarifies the process of inviting Helset and activities in Japan. Historical materials used for research are diplomatic documents from both countries, ski federation materials, and letters written by Helset to their families. The study revealed the following:
1. Modern Schanze and technical guidance are necessary for the development of the Japanese skiing world, and the Ski Federation planned a training for the leaders with the advice of Chichibu and the financial support of Baron Okura. Therefore, the Norwegian government and the Norwegian Ski Federation accepted the wish of an important invitation from the Japanese imperial family and dispatched the best ski leader Helset and two skiers to Japan.
2. Their activities are to search for candidate sites to create Schanze in Hokkaido, Tohoku, Hokushinetsu, and Gunma, and to teach and give lectures at ski competitions held in Hokkaido, Niigata, Nagano and Gunma.
Their activities attracted attention in various places, and many people gathered.

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This study examines the historical significance of Tokiwa park and Kaguraoka park in Asahikawa, Hokkaido, Japan, from a sociocultural perspective, utilizing related literature. The paper focuses on the following six points: (1) development of the Kamikawa plains within Asahikawa city area, including the concept of an amusement park; (2) the background and history of the request for park installation in Asahikawa Town; (3) the negotiation process between Asahikawa Town and the 7th Army Corps, which led to the opening of Tokiwa Park; (4) the construction, maintenance, and renovation of Tokiwa Park along with the Ushubetu River amelioration; (5) negotiations with the Imperial Forestry Bureau up to the opening of Kaguraoka Park; and (6) the relationship between the establishment of Kamikawa Shrine and Kaguraoka Park. The three major revelations from the study relate to the park establishment process in preceding cities and the town’s history of the target site in the background of the park setting and site selection. The mediation of disputes among the 7th Army Corps and Asahikwa Town triggered the establishment of Tokiwa Park, while land lease negotiations from the Imperial Forestry Bureau and the establishment of the Kamikawa Shrine led to the conservation of the forest in Kaguraoka Park.

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Hidaka district, Southern Hokkaido is known as high seismic area and had been damaged due to earthquakes of the 2003 Tokachi-oki, the 1982 Urakawa-oki, the 1952 Tokachioki and so on. As for these large earthquakes detailed damages can be traced through many reconnaissance reports. However other earthquakes which caused damage to this region are not surveyed in systematically. In this paper, 7 damaging earthquakes are investigated through newspaper articles and related documents and detailed damages are listed by local municipalities. Many unknown damages can be revealed.

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本研究は、1940年前後の戦時下における石狩工業都市計画について考察し、以下の点が明らかになった。１）1939年案と1940年案とを比較すると、その目的が石炭積出港の建設から工業都市の建設へと変化していた。２）工業都市計画の主目的は、軍需産業の増強ならびに防空であった。３）これらの目的は、北海道拓殖計画と日中間の15年戦争の目的に合致していた。４）1941年の太平洋戦争の開始により、計画区域が苫小牧へと拡大したが、その実施は戦局の悪化により棚上げとなった。

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　Before World War II, Japan, which had been at the bottom of the world’s ski jumping ranks, leaped to the top with the guidance of the Norwegian Helset in January-March 1929. The purpose of this study was to clarify the state of the sport before Helset’s guidance and its influence on the ski jumping world thereafter, in an attempt to clarify the guidance on Schanze jumping technique given by Helset. The study revealed that before the arrival of Helset, the Hokkaido University ski club had studied Schanze jumping techniques and theories independently since around 1914, and had practiced the technique of landing while keeping the body upright in the air. At that time, neither the Schanze available nor existing techniques were anywhere near the world level, and global trends were insufficient. Helset consistently conducted repairs, guidance, model jumps, and lectures in Hokkaido, Tohoku, Shinetsu, and Kanto from January to March 1929. Helset’s technical guidance centered on the world’s top Tams type, which constantly fixes the body bent forward in the air, and the Schanze guidance centered on Straumann’s theory of creating a gentle elliptical slope. Upon receiving these instructions, the athletes increased their flight distance, and the Federation announced that it had renovated and rebuilt the Schanze, being able to hold a jump tournament. In addition, the government cooperated with the spread of the technology and the Schanze theory throughout Japan. Helset’s world-leading Tams-type technology and the Schanze theory were then consistently taught in regions where skiing was possible, leading to superior technical effects and improved facilities, thus raising the level of competition so that it approaching the world’s best.

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積雪寒冷地北海道において，北海道らしい「緑」を効果的に演出していくための造園植栽材料の選定指針の策定を試みた。良好な生育が見込まれ，かつ修景機能を効果的に発揮することができる造園植栽材料を選定するために，自然・植栽分布や植栽実績などの情報から植栽可能な対象種を整理し，それらを土着性，本来的な生育地の植生タイプや土壌立地，見どころなどに着目して造園植栽材料を分類し，シートに整理し選定の指針とした。

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We regard a rehabilitation and reconstruction planning as one of the important subjects in urban disaster prevention strategy. Then, the first investigation examined a recovery process of a destructive city fire in Hakodate which had occured on March 21st 1934, in details. Referring literature and hearing surveys, this study analyzed the situation. After that we attempt to derive required conditions for smooth and quick recovery of a damaged city.

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The Off Kamui-Misaki Earthquake of 1940 attacked Northwestem coastal region of Hokkaido and 10 persons were killed by accompanied Tsunami. However other shaking damages due to this earthquake have not appeared in earthquake catalogues. In this paper a literature surve was carried out through documents and newspaper articles. It is revealed that the damages are found at wide area of Western coast of Hokkaido and Southern Sakhalin and listed by municipalities. Slight building damages and ground failures were found in the town of Otaru, Yoichi and Iwanai.

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