A male mongrel dog 9 months old was affected with generalized cutaneous asthenia. Its cutaneous elasticity was less than 1 /10 and 1/15 of that of heahlthy dogs at the back and belly, respectively. When the skin was cut, subcutaneous hemorrhage was absent or a little. There seemed to be no pain. Atorophy caused an apparent increase in elastic fibers of the skin, although the elasticity of the skin had been reduced.

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In a broiler-processing plant, chlorine preparation was added to the cooling water in a tank. The rate of removal of bacteria was 50.0 and 93.4% when residual chlorine (RC) was 10-80 and 100×200 ppm, respectively. The rate of Salmonella detection was high when RC was below 50 ppm, and low when RC was maintained at a level higher than 50 ppm. However, when the body was highly contaminated with Salmonella, it was difficult to destroy the germ completely even at a level of RC higher than 50 ppm.
It is recommended that chlorine preparation should be added to the cooling water held below 5°C in such amount as to make RC exceed 100 ppm, and that the body should be shaken in the cooling water and held in it for more than 10 minutes.

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A preparation of Marek's disease vaccine (Deptavac-HVT) was tested for safety and immunogenicity. A total of 2, 000-2, 100 chickens in each of five poultry farms were inoculated with 1, 000 PFU per capita of this vaccine by the intraperitoneal or subcutaneous route and held under observation for 180 days On each farm 894-1, 050 chickens served as controls.
The rate of death and condemnation was 3.3-9.8% in the inoculated group and 9.1-23.0% in the control group. Tumor was found macroscopically in 117 inoculated birds and 348 control ones. The histological diagnosis of Marek's disease was made on 116 inoculated and 355 control chickens. The number of birds infected was reduced by 77.1-87.6%(84.0% on the average) in the inoculated group, as compared with the control group.
Vaccine virus was detected from 85.7-100% of the chickens of the inoculated group for 30-180 days. Field Marek's disease virus was isolated from all the tested flocks of the control group at 28-30 days of age. Contact infection with vaccine virus was noticed in some birds. Gel precipitation antibody against HVT began to appear at 31-60 days of gae. These results indicate that the tested vaccine is very high in safety and efficacy.

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Sevenw orms (5 female and 2 male) of Dipetalonema gracile (Run., 1909) DIESING, 1861 were detected from the abdominal cavity of the monkey, Saimiria sciureus. They presented the morphology characteristic of the species already reported.

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