Show GOLD IN RUBY BUSY GLASS Genuine Genuino ruby glass lass is expensive o because because because be- be cause cause it is prepared with gold old It owes its color to the tho presence throughout its ita mass of particles of gold old too small email to be seen with tho the microscope microscope- Only the which row ron I v aers tiers visible objects perceptible by means means of their diffusion of Ii light ht is able gable to show the existence o or of these minute particles With the ordinary microscope microscope mi mi- the tho glass appears as a uniform transparent mass mus but the scope cope shows that it is is filled with points point of light resembling stars stan on a black 1 background These points indicate tho the 1 presence pr sence of ot the particles particle of gold to which color of the glass is due due due- Youths Companion |