HC Deb 18 December 1941 vol 376 c2075
49. Sir John Graham Kerr

asked the Prime Minister, since attention has repeatedly been drawn to the inadequate use made of the camouflage principle known as compensative or counter-shading, and in particular to a group of guns erroneously counter-shaded, whether he will place the whole subject of the use of paint in war camouflage immediately under the supervision of a competent expert in this branch of biological science?

Mr. Attlee

The principle of counter-shading is well understood by those responsible for camouflage design. It is only one of the factors which must be considered in determining the most effective use of paint for camouflage purposes.