OCR Text |
Show KiigraTliiiI by Dynamlt. The action of dynamite u o quiclc that it is said a tender gTwrn leaf can b compressed into the hardest steel bc-for it has time to flatten. One of the expert-merits expert-merits of the United Btate torie.lo works was to place some leaves U-twe.'n two heavy, flat piecea of iron. ;t them on a linn "foundation and see what gon cotton would do in forcing the iron pieces together. The reaction was so rreatthat one of the irrjn piece wa driven down upon the other quick enough to catch an exart and complete impresoion of the leaves before the7 could escape. It U also a ingrdar fact that the g-jn cotton itself ahcnld mnk deep into the iron when it eiplodea, ihowing the points of the letters stamped into the cartridges. This novel method of engraving ia one of the wonder of thia century. |