Using a driving wheel, the author tested the effect of olfactory stimulation with ethyl-esters on the general activity of inbred strains of Swiss albino mouse, SM., CFW., NA-II and strains of mixed breed, CFW-F SM and NA-II+SM. The inbred strains of mice were more sensitive to the stimuli of esters than strains of mixed breed.
Using driving wheel, the author tested the effect of olfactory stimulation of isobutanol and iso-amyl-alcohol on the general activity of inbred strain of Swiss albino mice, CFW, SM, and the mice of mixed bred, CFW x SM. About the activity to driving, strain CFW was most active, strain SM was least, and CFW x SM was the middle of both strains. The driving activity of the strain SM was promoted by these two alcohols, and that of strain CFW was inhibited contrary. In general, the mice of mixed bred showed on average activity of two parent strains.
Using driving wheel, the author tested the effect of olfactory stimulation of several fatty acids on the general activity of inbred strain of Swiss albino mice, DDd, SM, NAII, CFW, and the mice of mixed bred. The odor of the several fatty acids have influence upon the activity of the each strains of mice. The effects of these fatty acids on the activity to driving were different in accordance with each strains of mice and with kind of fatty acids and its concentrations. Some fatty acids influence on the activity to driving in conformity with the carbon number of the fatty acids. These findings are of interest from the view point of odor conditioning
Using driving wheel, the author tested the effect of olfactory stimulation of several fatty acids on the general activity of inbred strain of Swiss albino mice, DDd, SM, NA II, CFW, and the mice of mixed bred. -The odor of the several fatty acids have influence upon the activity of the each strains of mice. The effects of these fatty acids on the activity to driving were different in accordance with each strains of mice and with kind of fatty acids and its concentrations. Some fatty acids influence on the activity to driving in conformity with the carbon number of the fatty acids. These findings are of interest from the view point of odor conditioning
The author used skatole, acetone and Alinamin (thiamin propyldisulfite) as the reagent for the olfactory response test via nostril, and Alinamin for that via blood vessels, and made the study upon 500 persons. The results were as follows ; 1. In the cases of test via nostril, femal was rather sensitive against acetone and Alinamin, and male was rather sensitive against skatole. There were positive correlation between the threshold against skatole and that against acetone, and between the threshold against acetone and that against Alinamin, but no correlation was found between the threshold against skatole and that against Alinamin. 2. The reaction time for Alinamin which was administrated through blood vessels was 9.6 seconds in the case of male, and 8.9 seconds in the case of female. There were positive correlation between the sensitivity against skatole via nostril and that against Alinamin via blood vessels, and between the sensitivity against acetone via nostril and that against Alinamin via blood vessels, but no distinct correlation was found between the sensitivity against Alinamin via nostril and that against same reagent via blood vessels.
During the study on the olfactory response of human being, the author found the cases of so-called smell-blindness, and classified them in three categolies. The first one was smell-blindness via nostril. They did not react agains skatole, acetone, and Alinamin (thiamine propyldisulfite) via nostril, and the number was 16 out of 500 (3.2%). The second one was smell-blindness via blood vessels. In this case, they did not react against Alinamin which was administrated through blood vessels, but react in some extent against three reagents mentioned above via nostril. The number was 12 out of 500 (2.4%). The third one was so-called complete smell-blindness. They did notreact against reagents both via nostril and blood vessels. The number was 6 out of 500 (1.2%). Owing to the small numbers of cases, the author could not find any decisive rule of heredity about smell-blindness
The relationship between menstruation cycle and olfactory responseag ainst Alinamin was tested in 75 cases according to R; Ikeda's method. The threshold value was varied in each period, i. c. pre-menstrual, menstrual and post. menstrual periods. In menstrual period, the threshold value was increased markedly.
The author made the investigation about the olfactory response of newly hatched silk-worm against leaves of mulberry chrysanthemum, Fatisia japonica, fig, horse bean, and blue onion, and certain number of synthetic chemicals. The results were as follows. 1. The crawing speed against mulberry leave was different among each strains. 2. The olfactory response or chemotropism against leaves of mulberry was more distinct than that against the other leaves in the case of inbred strains, but in the case of certain mixed bred strains, some strains were more sensible against the leaves of latter plants than thet of mulberry. From above mentioned facts, it might be concluded that the genetic factors have influence on the sensitivity of silk-worm. 3. About chemotropisim against synthetic chemicals, only one strain out of four showed response against certain aldehydes.
During the period of a year and five months (May 1958-October 1659), I have from the standpoint of constitutional anthropology, made measurements of the living bodies (trunk, limbs, head, face, etc.) of 565 adult males and 325 adult females who are the inhabitants of the SuhO district of Yamaguchi Prefecture. I have made detailed observations based upon the measurement values and index values of 27 items, and have made a comparative study with those of other districts. The following is the result, although here I have restricted the comparative study to adult males. 1) The average height of the SuhO district males is 159.98cm and belongs to the “small” group according to Martin's height classification, but as a Japanese adult male they belong to the “below medium” group. Their measurements resemble those of the adult males of the districts of Tosa, Takachiho, Kaga plain, and South Noto. 2) The maximum length of the head measured 184.00mm, resembling that of the peoples of Shinshu-Iida, Izumo, and Koma, while the maximum width of the head measured 151.70mm., resembling that of Tosa, Oku-Noto, Bitchu, and Izumo. 3) The index number of the length and width of the head is 82.65, belonging to the small-head type, far exceeding the average index value of 81.31 of the district measured by Dr. Koya. This reveals the fact that the maximum length of the head is short in comparison to its maximum width. As seen in view of Martin's head classification, 44.15% of the SuhO district males belong to the 'small head type, and 31.86% to the medium head type. The classification curve and T.D. strongly resembles that of the adult males of Izumo, Koma, Harima, Yamato, Inaba, and Shinshu-Kami-Ina. The resemblance to the Ainu of Hokkaido and to the people of Etcha is negligible. 4) Comparing the SuhO district males with those of other districts according to the M.T.D., those of the Koma, Yamato, Izumo, Harima, Bitchu, East Saitama, and Shinshu-Iida, reveal a M.T.D. of below 5.50. This is an interesting discovery in view of the fact that the districts just mentioned all retain the history of immigration from the Asian Mainland. On the other hand, the people of Etcha and Noto who are considered to be of Ainu origin, together with the Ainu of HokkaidO, reveal a M.T.D. of over 12.00, and the relationship is vague. From the above data the general conclusion can be drawn that the people of SuhO district, judging from the measurement results of the various qualities of the highest value in constitutional anthropology, are highly similar to the Yamato, Izumo, Bitchaand Koma people, descendants of immigrants from the Asian Mainland and who had boasted of the highest form of civillization in Japan, and also to the peoples who held active communication with the Asian Mainland. The Suho people had relations with the Yamato dynasty since the era of the tenth Emperor Sujin and went under the leadership of the Yamato dynasty by the time it completed the unification of the country around the middle of the fourth century. They thus were able to prosper, and due to dommunication facilities they probably received the influence of both the Sanyo and San-in sides of the mountainous area, and further by constitutional anthropological study, they show strong racial affiliality to the peoples of Yamato and Izumo. It is also an interesting fact to note that they also show a strong resemblance to the peoples of Bitcht and Harima situated along the Sanyo highway.