Show PERFECTED TO BEAT G SUBMARINE operations OP E HAMPERED BY DARING RAID BY BRITISH sinking of old boat may block har bor and cause removal of hun submarine base greatest mine field in world sown i london eions from uie the L fac f AC 1 I 1 11 gi glum u in leave ve been rio us 1 for a time if not I 1 bya during daring raid made last week upon the durbor by the british an official statement issued saturday by the british admiralty says the channel lending out of the inner harbor has been completely blocked by the hulk of the old cruiser vindictive which was maneuvered into position under heavy fire and then sunk stink by bombs it I 1 is pointed out that the obstruction tion in the channel at ostend will tend lo 10 to eventually close the harbor through the action of the tides and the rapid silting up it if ostend and zeebrugge Zee brugge are arc removed as ports from which the german U boats may be operated the germans apparently will be compelled to withdraw their submersibles to their home ports in ili this connection it is ib interesting to note that a week ago it was announced that the greatest mine field known to nai naval ml operation had been planted in the north sea to combat the submarines it was officially stated that the area of tills this mine field ifould vi be 1 square and that it would be completed by slay may 15 some months ago admiral jellicoe of 0 the british navy announced that the submarine menace would be met by august I 1 and it is possible that he had the blocking of the h harbors arbors of zeebrugge Zee brugge and in the laying of an immense mine field in mind when lie he made ills his statement |