Purified mono and di-2-ethylhexyl phosphates and their mixtures were prepared. Alcoholic solutions thereof were titrated with alcoholic KOH solution by an automatic recording titrator.
Contents of mono and dialkylphosphates were determined from the differential curves.

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Cuscuta chinensis is often confused with the related naturalized species as C. pentagona. The specimens kept in the herbaria were examined and the distribution of C. chinensis in Japan was shown.

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This method is to be attempted that fusulinids specimens are observable by means of the impressions upon celluloid-membrane ("Sump-Figures") without making thin slices., The prosses is as follows., 1., Polish materials with a grinding machine and flatten the surfaces., 2., Immerse them in 2% Hydrochloric acid for 2-3 minites., 3., Polish the material with chromium oxide or red ochre on a woolen buff., 4., Etch them with 2% acetic acid for 1-2 minites., 5., Make impressions upon celluloid-membrane with a mil acetate.,

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Surfactants having propane sulfonate group were prepared from fatty alcohols, acids, amides and amines.
Surface active properties of their aqueous solutions were examined for surface tension, foaming-, penetrating-, emulsifying powers, hard water resistance and CMC.
In general, their CMG's were lower than those of sodium alkyl-sulfates, and their surface active properties were excellent even at lower concentrations.
As to the relationship between the alkylchain length in these derivatives and the surface active properties, lower surface tension was obtained by C14-and C16-derivatives, excellent emulsifying property by C18-derivatives, and superior foaming and penetrating powers by C12- and C18F1-derivatives.

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In this study, authors investigated means of transportation and benefit of bicycle usage for tsunami evacuation drill in Tahara city facing the high threat of Nankai Trough earthquake. According to the questionnaire survey, 45% of people evacuating longer distance destination (Atsumi Sports Park) used bicycles, and percentage of cases finishing within 15 minutes target time is higher. According to the time measurement at safety line, delay time of bicycle users is shorter than pedestrians. GPS log recordings indicated average velocities of 91m/min for pedestrians and 146m/min for bicycles, and standard deviation is smaller for bicycles than for pedestrians. Identifying contour polygon for 5 min., 10 min. and 15 min. allowance time for evacuation, bicycles are effective to cover wider communities where evacuation destination is more than 1km and rather distant.

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