29 MARCH 1919, Page 13

HOLLOW HOUSE-WALT.S.

[TO THE EDITOR OF THE " SPECTATOR.") Sne,—After reading Mr, Dtagdale-Madley's letter in your issue of March 22nd and re-readine, what I wrote, I find no such expression as an "abominable practice," anal I rennet under- stand why he should quote me as using it. If, supports his assertions by en experience of thirty years. My experience extends over more than forty-five years. I am folly aware of the porosity of brickwork and plaster, and it is bareness of this porosity that builders of hollow walls do not put ventilators in their outer half brick walls. • If they did the wind would blow through their inner four-and-a-half-inch wall and make the building, uninhabitable. Ala'. Dugiale-]Talley does not name the one point in favour of hollow walls. width is that the inner wall attics so quickly that the building eon lie inhabited as soon as finished, a most useful condition in a temporary building. But neither does he overthrow any of my three statements: (1) Hollow walls are difficult to repair; (2) the rain gels through the outer wall; (3) the two-inch hollow space is dark and damp, which is favourable to and eneournges growth of lower organisms. I might have added another objection—vie., that all the Weight oh the floor joists conies on the inner wall only. But these are hardly matters for diss eussion in the Spectator.—I ant, Sir, Ac., THACKER IT TERMER.