Show Device to Blow Up U-Boats U J Holland lland writes in the Wall Nall WallStreet Street Journal I There was undoubted a- a I tion tiou tion for the very careful state statement ent enta a few c few w days ago by br William L. L Sanders Sander Sanders San San- I ders der ders dersin in which he lie intimated that an app apparatus ratus had been perfected whereby where where- by br the t the su submarines could be mastered While it is des desire re o of the gO f government tha that details should not at present be become e known nevertheless ne there Is no doubt put out that In a short snort time tho chief will Inevitably be reveal ed not o only to the allies allies' but to Germany Ger Ger- many many many- The r e surmise at first was that electricity was the agent utilized In some new manner But Dut it is not to tobe tobe tobe be electricity Instead it will be of near kin to electricity for or magnetism J Li instead i to be utilized The apparatus apparatus apparatus appa appa- ratus is now now beh being g built In large numbers The intention Is speedily to strew the sea in all Il zones where submarines are are operating with many thousands of these little but deadly things The apparatus is so built that it will almost float upon the surface i Yet it is so small that it is not likely like like- ly jy to be detected It requires no guidance It It operates automatically When a submarine approaches within with with- id lr in its influence the apparatus will at once cling cUng to the die hull of the tho submarine submarine submarine rine with something like the tenacity of th the devil fish Those operating submarines are not likely to k know ow I that one of these dangerous insects of ot the sea sel is attached The submarine submarine submarine rine is safe as long as as it remains upon the surface For tho the apparatus is so adjusted that not until a certain depth is reached the reached the average depth to which a submarine sinks sinks sinks- will the stupendous force contained within with with- in it be discharged thereby te tearing ring the bottom of the submarine out Tire The apparatus can be made at as low a cost as 5 5 for tor each one Exhaustive Exhaustive Ex Ex- Exhaustive Ex- Ex tests teats appear to have persuaded persuaded persuaded per per- those in authority that it Is capable of doing exactly what its in inventor In- In an an army officer officer claims claims fo for It Therefore it is the understanding understand understand- ing here that alread already this apparatus In considerable numbers is In progress progress pro pro- gre gress o of manufacture and will when made be bo taken out upon the ocean and set et free to float until at last through its magnetic power It attaches attaches attaches at at- itself itsel to a submarine It is the tho belief belle that the apparatus will vill thoroughly supplement work of the destroyers and nd serve as an ef I dent aJl ally for or the American fiot flotilla l a which i is now operating In the submarine submarine submarine sub sub- marine zone and for the additional vessels of this type which are to besent bo be sent to this zone One po peculiarity of the apparatus is that it will not endanger any wooden ship or an any steel or Iron ship unless the draught be substantially the same as the depth to which the submarine sinks when submerging |