The findings of studies on the distribution, which was insected for 7 months by the author, of the eggs of ascaris lunbricoides in the soil of the rural vegetable gardens, the residential districts and the play grounds in Aizu-Wakamatsu, and that about season rise and fall, which was inspected for a year, of the eggs of ascaris lumbricoides in the soil of the rural vegetable gardens are following
1. By the inspection of the eggs and I.F.D, comparing about the distribution of the eggs in the soil, the rural vegetable garden showed the highest, and next the play ground of the branch schools in the remote place showed about 1/2 distribution of the rural vegetable gardens and it was comparatively higher.
The next was the kitchen garden of the house lot, compared with them, the flower-bed of the house-lot was by far lower and both the playground of streets and the farm-village were the lowest.
But the average numbers of eggs in one specimen was the highest at the kitchen gardens of house lot. Cause this was found as a specimen which showed especially many numbers of the eggs detected in the picked specimen in the kitchen gardens of hous lot. And this should be attentioned.
2. In the kitchen gardens of house lot and the rural vegetable gardens, the distribution of the eggs of ascaris in the soil which was manured was higher than in the, soil which was higher than in the soil which was not manured.
3. At the past of the ditch and of the ridge in the rural vegetable gardens, compared I.F.D. with I. V. D., in general, the past of the ditch was little higher than of the ridge (expect June) in I. F. D. and the ridge was little higher than the past of ditch in I.V.D. (expect June and Jan).
4. At the rural vegetable gardens, devided to the kinds of works, season rise and fall of the average numbers of eggs in logr, and the numbers of eggs containing decreased at all gardens in midsummer.
5. From I. V. D. and I. F. D. of the ridge and of ditch at the rural vegetadle gardens, I. I. P. was found. Judging from this study, the chance of the infection by the eggs in the soil of the rural vegetable gardens was much in spring, July and Autumn, especially spring was important and in midsummer it was a little.
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