Show power of a breath in order to show what force not but actually a breath has sas st nicholas take a good stout tight paper bag and facing it on th edge of a table ll at its mouth projects a head book on end on the bag aad across this beoh lay also of conquerable weight by alov ing in the bae heeling the mouth tight in th bag so that EO air can escape the up right book will be tilted and raided aad the truc tire eiert rown it would ol 01 course be lampos ble to blow the bholi over without the aid of the bag |