Show what we breathe in the morning when a broad beam ot sunshine pours through the win dow of your sleeping apartment boj see countless tiny particles floating along the path of the suni but the air of the remainder of the room seems entirely clear and pure Is if not at all there is just as much dust in tha air outside that stream ol 01 light as there is in it but it is rot visible so the disease germs in the form of impalpable dust are floating about us often when he are ancon of the presence our vi bality may be trong enough to render them innocuous or it may not it it Is we reta n our health if it is not we are attacked with typhoid or theria or some other malady corn muni catel in that way |