Blocks of peat roughly cut to shape are fastened in the case with glue and nails. The whole is then covered with whiting made with thin glue instead of water. It. is coloured with oil colours, and grasses, etc.. are fixed. Another and better method is to form a light foundation with strips of wood, to which are attached cardboard and brown paper, and the spaces filled with shavings, small pieces of thin paper being pasted over all joints and angles. By this means the groundwork can be built to any shape or size, and there is less likelihood of introducing insects. The groundwork should be left for a day. then covered with glue and whiting. When dry, it is covered with thin glue and fine sand forcibly thrown on. Lastly, it is coloured to taste by flooding on thin paint.