Gross anatomical examination was done on a total of 100 limbs of 50 cadavers of Macacus cyclopsis concerning the flexor muscles of the thigh. The following results were obtained.
The muscles of the thigh may be largely classified into the flexor group, adductor group and the extensor group. Of these, the flexor group include the M. biceps femoris, the M. semitendinosus and the M. semimembranosus each of which are supplied by the N. texores femoris that is a branch of the N. ischiadicus.

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The peptidase activity of the liver, kidney and pancreas of starved mice has been investigated.
The activity of the liver, kidney and pancreas gradually decrease till 12 hours starvation. The activity at 24 hours increases in every organ. After 24 hours the activity decreases only in the kidney, and increases in the pancreas and liver with the progress of starvation, Especially the increase of activity in the pancreas is remarkable. In the pancreas the activity is noteably stronger, than that of the control after 24 hours starvation. Only in the liver, the Activity at 72 hours is somewhat stronger than that of the control.

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Comparative observations were made on pregnancy and development of fetuses from colony bred Japanese hybrid mice of three groups representing elderly virgin mice 10-12 months old, elderly multiparous mice 10-12 months old and young virgin mice 1 1/2-2months old. The findings are summarized as follows:
1) Litter size in the elderly primiparous group was smaller than that of the other two groups.
2) Mortality of fetuses was as high as 27-30% in the elderly primiparous group; 9% in the elderly multiparous group and 5% in. the young primiparous group. Besides, the fetuses which apparently died in the later stage of pregnancy were more often found in the elderly primiparous group than in the other two groups.
3) As regards number of corpora lutea, the elderly multiparous group showed a higher value than the other two groups. In this connection, we consider that in elderly primiparous mice, a comparatively small quantity of corpus luteum hormone for their body weight might be associated with the high fetal mortality.

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1. Neuromelanins in the nerve cells of locus caeruleus and substantia nigra of the six human brains are examined histochemically.
2. Neuromelanin stains deep green at pH 4 and 5 in the azure A or methylene blue staining method.
3. By methylation procedure the basophilia of neuromelanins disappears completely in about 48 hours, that of Nissl bodies and glia nuclei in 4 hours.
4. Demethylation following methylation for 48 hours at 60°C. restores basophilia of neuromelanins and is incapable of restoring the same features of Nissl bodies and glia nuclei.
5. Eosinophilic granules in the nerve cells of locus caeruleus and substantia nigra stain good at pH 4.5 in the azure A eosin B staining procedure. These eosinophilic granules are developed much more in the nerve cells of locus caeruleus than those of substantia nigra and also in younger person.
6. The eosinophilia of these granules abolishes at pH 6.5 and 7.5 and is weakened at pH 5.5.
7. By acetylation for 24 hours the eosinophilia of granules abolishes completely.
8. Nitrosation for 24 hours at 25°C. destroys the eosinophilia of the granules completely.
9. Eosinophilic granules appear brilliant red by azo coupling procedure with Fast Garnet GBC.

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1) Adult mice were bred under high and low temperature, for certain hours and the neurosecretory phenomena in Nucl. supraopticus and Nucl. paraventricularis were observed.
2) Under high temperature, the neurosecretory phenomena in Nucl. supraopticus and Nucl. paraventricularis were examined in three, six, nine and twelve hours respectively. With the process of time the nerve cells of the secretory nucleus were increased in size. The secretory granules generally displayed a slight decreasing tendency and these are wholly diminished after twelve hours.
3) Under low temperature for one and two hours respectively, in the nerve cells were observed. The nerve cells were slightly shrunken and generally the secretory granules did not show re- markable changes but the granules were increased with the process of time.

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