Page:Science ofDress121.png

CHAP. viii.] RESULT. A.a. Painted white and exposed to the full rays of the sun......                             100° F.      Painted French grey      ditto    ditto. 111°     Painted dark grey        ditto    ditto. 112° A.b. Painted with one coating of grey over white. .  108°      Painted with two         ditto     ditto. 116°     Painted white and exposed to the sun. 100°     Whitewashed              ditto     ditto. 98½° B.  Biscuit-box painted French grey. .  111°      Over this one coat of whitewash. .  102°      With two coatings        ditto. .   96° C.   Biscuit-box painted lead colour. .  112°      Over this one coat of whitewash. .  103°      With two coats           ditto. .   97°

According to Dr. Parkes the material of clothes is of no importance as far as regards protection from extreme heat in the form of direct solar rays, and colour must be trusted to in this respect. White has the greatest protecting power, then grey, yellow, pink, blue, and lastly black. On the other hand, in the shade colour does not markedly protect against heat, and the thickness and non-conducting character of the material worn must be depended on.