Continuating the preceding paper, the restraining function of gelatin against the grain growth during the Ostwald ripening, gelatin impurities and their behavior during the digestion, characteristics of gelatin that relate to the finishing of the emulsion are discussed in this paper.

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We thought that the sharpness of X-ray diffraction photograph should be estimated physicaly, because the photographic image is treated under the microphotometer and that the visual graininessor the response function should be measured for the use in non-destractive-inspections.
The physical sharpness, the visual graininess and the response function on some commercial materials which are used in X-ray photography, were estimated after exposure to X-rays and development. Conclusions obtained from experiments were as follows.
The graininess was not almost affected by developing time when exposed to X-rays, contrary exposed to light. The graininess which was observed by the fixed illumination of 20 to 50 lux, was particularly coarse at the density of 0.4 to 0.7 above the base density. The higher the contrast which undoubtedly was influenced by kinds of films, exciting voltage and developing time were, the better the sharpness was. The best sharpness was obtained with Type 200 of Fuji Industrial X-ray film, and the finest graininess with Type 80 of that. Exciting voltage lower than 100 kV effected remarkably on the graininess and the sharpness, and the higher than 100 kV yielded hardly the difference of the graininess.
Although a grade of the visual sharpness were reciprocal to it of the physical sharpness between some photographic materials, an order of graininess between some materials was nearly proportional to an order of the response function, which was close to the visual estimations of the reproducibility for a fine structure.

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1) Several types of suspensions were prepared by addition, over a period of 30 seconds, of silver nitrate and potassium bromide solutions containing excess bromide (previously adjusted to pH 3.5-10.5) by double jets system and then ripened for 128 minutes.
The kinetics of crystal growth was studied by turbidimetric measurements and silver bromide crystals obtained after ripening were examined by optical micrography.
Visual observations indicated that the shape of crystals changed by variations in pH of gelatin solutions.For example, in low pH suspensions (pH 3. 5), thin, flat and well shaped triangular, (or hexagonal) crystals formed 90 per cent of total, and residua were poly-hedral and steric crystals. On the contrary, in high pH (pH 10. 5), the former (well shaped crystals) formed only 10 per cent, Author belives that these differences due to the effect of changes in the nature of the protective gelatin layer. Namely, the ionic dissociation of low degree of amino groups of the gelatin at high pH causes to reduce the adsoption of the gelatin to crystals and then to promote the occurreuce of coalescence ripening.
2) A period of occurrence of “coalescence” was investigated.
The appearance of cryetals was observed in various four suspensions (I, II, III, IV) by the following experiment.
Type I suspension was ripend for 128 minutes at pH 8. 5, 3 minutes after mixing at pH 3.5
Type II was ripened for 128 minutes at pH 3.5 continiously after mixing at pH 3.5
Type III was ripened for 128 minutes at pH 3. 5, 3 minutes after mixing at pH 8.5
Type IV was ripened for 128 minutes at pH 8.5 continiously after mixing at pH 8.5
It was obtained that the percentage of flat crystals in Type I was nearly as same as in Type III, and then in Type III was nearly as same as in Type IV.
These results suggest that “coalescence” occures during and just after mixing, and as crystals grow over the critical size, no more “coalescence” occures.

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On this paper authors examined the photographic photometry which employed to measure the primaries of a particular display of color television.
In the case of photographic photometry of the tri-color CRT brightness, the photographic films were impressed peculiar type of an exposure and a spectral emission characteristics, therefore the analysis of photographic film density is important in the method.
Authors tried to make clear the relations between the CRT luminance and the photographic film densities, through experience.

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Spectral response characteristics of individual color channel of color television camera are provided for the FCC standard primaries on display device.
And electronic masking amp. is employed for color correction. Authors examined color reproducing characteristics and transfer characteristics of color television through the past treatment.
On the color television film camera the spectral response characteristics of individual color channel must to provision on the other view point.
This report proposes the base of reforming the camera characteristics.

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The tri-color gradient characteristics of televisional color film are must provied corresponding to spectal response characteristics of individual channels of the color television film camera.
In practice, the color film are not provided for color television, today.
Authors tried few treatment to provide the televisional color film characteristics in spectral response and tri-color gradient.
And propose some of new desirable characteristics of the televisional color film.

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