1 JULY 1916, Page 21

PIS.g DE TERRE.

[To VIZ EDITOR Or TES 'SPECTATOR., Sro,—It is now some two and a half years since I first commu icated with you drawing your attention to this method of building, and I have been watching with great interest your progress. In your issue of February 19th you say : "It is quite possible that Science has in her bosom some yet unthought-of material which will be suitable" for plastering the walls. There is in this country in general use a " natiee cement" which is a most efficient substitute for the real thing, and wig adhere to unbumt bricks and earth, which real cement will not do. It certainly is " unthought of," but not "scientific." It is made from SIMI and fresh cow-dung with a little whitening added. There are many who may doubt the genuineness of this, but I can assure you it is moit efficient for outside and inside walls out here, and only an experience" builder would know the difference by appearance, but I cannot guarantee that it will stand the home climate with its frosts and no sun. It will, of course, not stand bad usage, so always put picture and chair rails and don't knock nails into the walls. Its one great advan- tage is its cheapness, which for rural cottages is essential.—I am, Sir, &c.,