INTERESTING NOTES.

Bush Advocate, Volume XVI, Issue 582, 5 December 1904, Page 2

INTERESTING NOTES.

— ♦ THE LIGHTING OF A BOOM. Windows and open doors are, of course, | chiefly responsible for the amount of light in a room, white holes in the floor and ceiling may be safely depended upon to contribute their quote thereto as well. A good deal, however, depends upon the colour of the paper or other material selected for covering the walls; This, according to the percentage of light reflected thereby, will add to or detract from the darkness of a room in certain fixed proportions. The following table of the different percentages of light reflected by the materials chiefly in use for painting or covering walls is gathered from the. results of recent experiments on the subject by scientists:— Mirror 29.3, white paint 70, orange 54.8, light green 46.5, light yellow 40, blue 30, dark yellow 20, lig~t red 16.2, dark green 10.1, dark blue 6.5, black paper 4.5, black cloth 1.3, black velvet 0.4.