I thanked the Admiral for this fresh manifestation of his trust in me, and took my leave, pausing only for a few minutes, on my way to the gangway, to exchange greetings with some of the officers of the ship, and reply to their congratulations upon my promotion, the news of which had already got abroad. Then I went down the side, got into my boat, and was pulled across to the _Koryu_, where I found the delicate operation of shipping and stowing the mines in brisk progress. I introduced myself to the officer in charge, who at once proceeded to explain to me the structure and mechanism of the class of mines being dealt with; thus enabling me to understand the danger to be guarded against while handling them; after which he conducted me to my cabin, perched high on the boat deck; and I immediately took possession, sending my boat back to the _Kasanumi_ with a note for young Hiraoka, requesting him to take charge during my absence, and another to my steward, instructing him to send me across such things as I immediately needed. The change was greatly the better for me; for whereas my quarters aboard the _Kasanumi_ were cramped and of Spartan simplicity, the captain's cabin of the _Koryu_ was a spacious and almost luxurious affair, handsomely and comfortably furnished, with all the accommodation that a reasonable man could wish for. Two days later our fleet weighed and proceeded to sea, leaving the _Koryu_ at anchor, with our fourth and fifth destroyer flotillas and fourteenth torpedo-boat flotilla--twelve craft in all--to protect her. My orders were to proceed to sea in time to reach Port Arthur roadstead at midnight of the 12th, sow the harbour approach with mines according to a certain plan, and then retire, with the assurance that, if attacked, there would be a force of ample strength lying in wait to protect me. One part of my duty--after laying the mines--was to endeavour to entice the Russian fleet to come out in pursuit of me. Experience had taught us that, for some reason with which we were unacquainted, the Russian ships invariably followed a certain course when leaving the harbour, while, when returning, they as invariably followed another; my instructions, therefore, were to sow my mines over the area by which the ships returned to port, while leaving free that area traversed by them when coming out; the reason of course being, that as many ships as possible should be enticed to come out, in the hope that many of them would be destroyed upon their return.