抄録
This report presents a study on the effects of snowfall on the formalities that were done at the Imperial Palace or Shinden-style residences in Heian era.
The formalities were influenced by the snowfall, the snows laid upon the yard and the surface condition of the yard after snowfalls. Under such bad conditions, the ways of performance of formalities were classified into the following:
1. the suspension or postponement of the formality.
2. enforcement of the formality in the regular order.
3. enforcement of the formality in the regular order on the improved yard.
4. enforcement of the formality in the omitted order.
5. enforcement of the formality in the omitted order at other places. Such case was called"_??__??_(U-GI)"against to"_??__??_(HARE-GI)".In"_??__??_(HARE-GI)"some parts of the formality were done on the yard, but these were performed in the houses in"_??__??_(U-GI)".
