The snow fallen yesterday produced both good and ill effects. First, let me list its beneficial effects. It helped the winter temperature return to normal. Since last evening the temperature has been remaining below zero. The minimum temperature reached minus 16 degrees today. Tomorrow the temperature will drop to minus 19 degrees at most. At last the most distinctive feature of winter, piercing cold, which can kill harmful bacteria, has been actually sensed by us northerners. The snow also can purify the atmosphere. As for its side effects, it can bring the transportation to a standstill temporarily. More traffic accidents occur on the slippery roads covered with snow. Clearing the snow will add to the burden of the sanitation workers in town.