Freezing again last night. Today thawing in the sun but freezing in the shade. Some children able to slide on the ice of one of the ponds. They are ploughing in places, which the earth is not too hard for with a tractor plough. Frost turning into the soil said to be good for it, but snow is bad (ie. presumably bad for heavy soil). The £2 an acre subsidy for ploughing up grassland said to cover the costs of ploughing including labour. Tractor said to use about 10 galls. paraffin to plough an acre.