The committee, which considered at first the question of providing an _obstruction_, ended by reporting that the existing barrage was inefficient (a fact which had become apparent), and made proposals for the establishment of the already approved minefield on the Folkestone-Grisnez line. I do not recollect that any definite new ideas were evolved as the outcome of the labours of this committee; some ideas regarding the details of the minefield, particularly as to the best form of obstruction that would catch submarines or other vessels on the surface, were put forward, as also some proposals for erecting towers in certain positions in the Straits. I do not think that these latter ever matured. The manner in which the minefield should be illuminated at night was discussed by the committee, and arrangements were made for the provision of the vessels proposed by Admiral Bacon. Some disagreement arose on the subject of the provision of the necessary number of vessels for patrolling the minefield with a view to forcing the submarines to dive. In my view a question of this nature was one to be left in the hands of the Vice-Admiral at Dover, with experience on the spot, after I had emphasized to him the extreme importance attached to the provision of an ample number of patrol craft at the earliest possible moment. Interference by the Admiralty in such a detail of a flag officer's command would in my opinion have been dangerous and incorrect, for so long as a flag officer retains the confidence of the Board he must be left to work his command in the manner considered best by him after having been informed of the approved general policy, since he is bound to be acquainted with the local situation to a far greater extent than any officer serving at the Admiralty or elsewhere. I discussed the matter personally with Sir Reginald Bacon, and was satisfied that he was aware of the views held by me and of the necessity for providing the patrol craft even at the expense of other services, as soon as he could make the requisite arrangements.