We carried out the experiments on the gluing process of starch by using caustic soda and hydrogen peroxide at room temp.
Results as follows;
1. Potato starch.
2. Caustic soda for starch---6%
3. Hydrogen peroxide for starch---0.30.4%
Mixing and stirring these materials for 15 minutes, and after neutralize a part of Caustic soda and let alone glue for 2 days on room temp.
The glue by this means was comfortable for coating and viscosity was good. When use the sweet potato starch, must increase caustic soda 1.3% more than potato starch.

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The process of preparation of the sulphomethylated urea formaldehyde has been investigated, and its use been examined. Using 1 mol of urea, 2 mols of formaldehyde, (adjusted to a pH of 6 by NH₄OH) and 0.1 mol of NaHSO₃ and reacting at 100°C. for above 1 hour, the resin is produced, and then this resin is diluted at first to about 20% concentration by water, and after 515 minutes to 15%, and preserved. The wet strength of the paper treated with this resin is almost equal to that of the paper treated with melamine resin, and the process of papermaking with our resin is simple and practically the same as that of sizing. Henrikson and Steenberg found that theresins of this type showed uniformly good efficiencies in producing wet strength without regard to ionic character, when the degree of condensation was sufficiently high. The results of our study appear to endorse this fact further.

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This paper is concerned with the mechanism of sulfite process at low temperature, and the results obtained are discussed kinematically.
The results obtained are as follows :
1. Sulfonation, delignification and dissolution of hemi-cellulose of wood by sulfite process obey approximately the law of a first order reaction.

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It is very difficult to make pulps by sulfite process from Karamatsu heartwood, and the pulps obtained from Karamatsu are colored yellow or green.
Then the author thought that some fiavone analogue compounds existed in the woods, extracted with methanol, and obtained a crystalline substance from the extracts.
From the properties of the crystalline, it was convinced that this material was the same as "taxiforin " which had been isolated from Douglas fir by J . C. Pew.
Todomatsu chips were cooked with sulfite liquor which added taxiforin. The difficulty of pulping and yellow coloration of pulps were observed. The author considered these mechanisms.

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(1) The scientific term of the plant called " Nenori" " Hasamigusa" " Shoma" " Yamatoro " " Imonori " was indentified with Deinanthe bifide maxin.
(2) The chemical analysis of the root of " Ginbaiso " have been done.
(3) Some causes and effects of the decrease, with the lapse of time, by higher temperature, by stirring, in the viscosity of the mucus extracted from the roots of "Ginbaiso " were discussed.
(4) There is no storage of Ginbaiso.
(5) The coagulation of the mucus extracted from the roots of Ginbaiso and Hofmeister's order are at one.
(6) Microscopical examination of the mucus obtained from Ginbaiso show the leaf vein like stracture.
(7) The knowledge of Ginbaiso and storage of " Tororoaoi " have been added.

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Unfortunately, the writer has never had the opportunity to read Humm's report, but according to Bergson, Humm's equation was very reliable for designing the acid tower of sulfite pulp mill.
So, the writer has in the paper analized this equation as the analogy of light absorption and found a correlation between this equation and the equation from H.T.V., but there are some assump tions necessary in reaching that equatign from the latter. These assumptions, however, were found to be appropriate for commercial plants. Therefore, Humm's equation serves as the approximate equation deduced from H.T.V.

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