Nitrate reducing bacteria had been reported to play an important roll in yamahai-, a seed mash of traditional method for sake brewing, but in some cases these bacteria do not grow in yamahai-, a method to utilize freezedried cells of nitrate reducing bacteria for yamahai- making was investigated.Among tested 13 strains of nitrate reducing bacteria isolated from sake breweries, only Pseudonzonas sp.P 567 renatured well at 7°C from freeze-dried cells.The addition of freeze-dried cells of P 567 caused NO₂ formation in yamahai- at 7°C in a similar manner to the addition of its culture broth.

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With the progress of the industrial revolution in Japan (1886-1907), the cotton spinning industry, known as a typical examaple of industry transplanted from abroad, began to dominate the domestic cotton textile industry by means of monopolistic prices. Under this control, it seemed almost impossible for traditional textile-centers such as Mitsuke to survive in the keen competition with other textile producing areas. However, Mitsuke became famous for its distinctive silk-and-cotton fabrics woven out of tusser (a kind of silk threads produced in Manchuria). This process can be briefly outlined as follows. In the 1880's,the ori-(merchant-manufacturers) in Mitsuke asked their weavers to produce by hand looms cotton fabrics out of imported cotton yarn. These fabrics, produced under the putting-out system, were then sold to the peasants in the regions of Tohoktu and Hokkaido. Gradually some of them began to produce silk cloth out of tama-ito. After the Sino-Japanese War, instead of tama-ito, they used tusser made in Manchuria and began to produce new silk-and-cotton fabrics. Taking advantage of the sale of these products, Mitsuke became a center for the production of silk-and-cotton fabrics. During the l910's, in the Kansai market, the largest distributing center of textiles, Mitsuke became famous as the tnird center for the production of silk-and-cotton fabrics next to Ashikaga and Bisai districts. In my opinion Mitsuke's success was based on two factors. The first was the low price (1/3 of sill thread) of tusser from Manchuria. With the advancement of urbanization as background, the new products of Mitsuke were in great demand among city dwellers because of their low prices and good appearance. Thus drapers and ori- could make great profits for the low price of raw material. For the Manchuria was not a market for finished products but a market for the provision of raw material. The second factor was the ability to regulate the wages of weavers tlaanks to the force of the guild of ori-. For example, during the mid-boom after the Sino-Japanese War, they recruited weavers from other textile areas around Mitstuke by means of higher wages in order to increase the output of new products. But wlaen the recession set in and the cotton spinning industry began to force its nt' monpolistic price on the domestic textile industry, the guild immediately lowered wages for the putting-out system. It was already impossible for the weavers, who were mostly daughters of impoverished tenant farmers to leave the ori- in Mitstnke because of the decline in the surrounding textile areas.

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We. seven sake brewers in Numazu district of Shizuoka Prefecture; agreed to brew unitedly the first at one fixed place in the cold district. We brought rice and water respectively andbrewed it at the same time and at the same place. We tried to find how different waters givedifferent results in brewing.
We arrived at the following, conclusion:
(1) The water which contained much calcium, magnesium, or chlorine was not necessarily good in saccharifying and in fermentation.
(2) The which fermented early contained little amino acid and a smal number of yeasts.

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山廃, 速醸及び高温糖化の3酒母を用いて夫々清酒を醸造し, 酒母及びもろみの経過に従つてMyrbäck法により窒素区分を比較定量し, 特に高温糖化酒母は第2区分の窒素が他に比し多い事を見出した。

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Millon反応を用いて清酒と合成清酒の呈色を比較する条件について検討した。この条件で清酒と合成清酒の呈色は甚しく異り, 又反応の再現性も充分であるが, 清酒によつては煉瓦紅色に甚しく黄色を混ずるものがある点と, 最大呈色を示す時間が一定しない点に難点があることを知つた。これ等の点は, 試薬を改良することと, 条件を更に検討することによつて或程度迄除き得るものと考えるが, ここでは, 深く追求しなかつた。

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非乳酸資化性リンゴ酸デヒドロゲナーゼ低生産性酵母MLA-12を用いて,低アルコール清酒の醸造試験を行った。MLA-12は,K-901に比べて生育が遅いことから,清酒製造の仕込配合は,添:仲:留=1:1.5:2の酵母早期増殖型とした。低アルコール清酒の実地醸造試験は,速醸酒母及びアンプル仕込を用いて行った。速醸酒母では,リンゴ酸よりも乳酸の多い清酒となるのに対して,アンプル仕込ではリンゴ酸の多い清酒となった。この様に,MLA-12を用いて,その仕込法を変えることで,味のタイプの異なる低アルコール清酒の製造が可能となった。

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"Hashimoto no "is the information design project at Hashimoto Station KEIO Line in Sagamihara city, Japan.The project was produced by 3rd-year students in Department of Information Design, Tama Art University. 17 keyword for new shop, the logotype of these shops and over 800 photographs and messages from the people were put on the wall. This project will present people who use the station some topics. They will think about the shop and people, through the photograph and messages on the wall. Through the project, many people will work together to take a picture and write a message.

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Genetical constitutions of the wheat varieties as to Ear-scab have been proved to be 3 different factors, by author (3). The fact that Infected kernel percentage in the case of Ear-scab was reported is highly correlated to the infected percent of spikelet and spike by author ( 4 ). Kernels iufected by fusarial head blight produced large amount of alcohol and varietal differences as to Ear-scab depend on amount of alcohol produced by the addition of fusarium fungus. by author (5). Susceptible varieties as to the toxic reaction of KCI03 has A-factor and A-subs, tance produced by A-factor proved to be fructose by author ( 6 ). Varieties havingf fas, ter decolorization speed of the methylene blue, containing B-factor and B-substance produced by B-factor has large amount of giucose by author ( 7 ). Author ( 8) proved that large content of phosphorous, of the wheat varieties. was related Lo C-factor. From the fa'cts mentioned above, author carried out the followin*cf experiments on relation among the sus, ceptible susbtances and susceptible factors and corresponding enzymes.

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生翫系酒母が枯しに耐えることはよく知られているがその理由は明らかでなかった。近年, 伝統的な清酒造りに生翫系酒母が再び用いられるようになってきており, その工程管理を行う面からも酒母の枯しの意義を知ることは興味深い。実験的に扱い難い酒母を詳細な実験計画により解析した結果について解説していただいた。

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Amounts of the phosphorus, in th, e developing kernels (6 days after flowering) was measured by Dr. OKUDA's method (1), on 7 wheat varieties in order to have an idea on their resistance power against ear-scab. Varieties contain.ing lar*cre amounts of phosphorus were found in the varieties which containing "C" -factor as susceptible substance. From these facts "C" factor representing the amount of phosphorus was proved. (1) C-substance as product by action of "C"-factor for susceptibility was proved to be phosphorous. (2) Phosphorous compounds in the developing kernels having an action to the factors A and B and increasing the infection percentage to ear-scab were recognized.

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An air motor with regenerating system which was designed for a bicycle was developed, and the air motor was driven by compressed air without gas emission. The purpose of this study is to elucidate characteristics and regeneration performance of air motor, and the effect of supply air pressure and rotational frequency on output power were experimentally investigated. The maximum cylinder pressure increased as the supply air pressure increased, although the maximum cylinder pressure was less than the supply air pressure. The maximum cylinder pressure reduced as the revolution frequency increased because the inlet valve opening duration was decreased. Therefore, the output power can be improved by the optimization of valve timing. The output power and flow rate increased with an increase of supply air pressure, however both were decreased as the revolution frequency increased due to friction loss. The regeneration pressure was decreased in case of high revolution frequency.

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An air motor with regenerating system which was designed for a bicycle was developed, and the air motor was driven by compressed air without gas emission. The purpose of this study is to elucidate characteristics and regeneration erformance of air motor, and the effect of supply air pressure and rotational frequency on output power were experimentally investigated. The maximum cylinder pressure increased as the supply air pressure increased, although the maximum cylinder pressure was less than the supply air pressure. The maximum cylinder pressure reduced as the revolution frequency increased because the inlet valve opening duration is decreased. Therefore, the output power can be improved by the optimization of valve timing. The output power and brake mean effective pressure increased with an increase of supply air pressure, however both were decreased as the revolution frequency increased due to friction loss. The regeneration pressure was decreased in case of high revolution frequency.

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