Elsewhere I have written of the deplorable effect in the garden landscape of the glaring white paint�still worse when tinted blue�that emphasises the ugliness of the usual greenhouse or conservatory. This may be mitigated, if the unsightly structure cannot be concealed, by adding to the white a good deal of black and raw umber, till the paint is of the quiet warm grey that for some strange reason is known to house-painters as Portland-stone colour.