The commander of the ocean escort had no easy task in keeping his charges together. The age-old difficulty of grouping the ships in the order of their sailing (now steaming) powers has not diminished since Lord Cochrane, in command of H.M.S. _Speedy_, complained of the 'fourteen sail of merchantmen' he convoyed from Cagliari to Leghorn. In the first enthusiasm of a new routine, masters were over-sanguine in estimation of the speed of their ships. The average of former passages offered a misleading guide. While it was possible to average ten and a half knots on a voyage from Cardiff to the Plate, proceeding at a speed that varied with the weather (and the coal), station could not easily be kept in a ten-knot convoy when--at the cleaning of the fires--the steam went 'back.' Swinging to the other extreme (after experience of the guide-ship's angry signals), we erred in reserving a margin that retarded the full efficiency of a convoy. Our commodores had no small difficulty in conforming to the date of their convoy's arrival at a rendezvous. The 'cruising speed' of ten knots, that we had so blithely taken up when sailing from an oversea port, frequently toned down to an average of eight--with all the consequent derangement of the destroyers' programme at the home end; a declared nine-knot convoy would romp home at ten, to find no escort at the rendezvous. In time, we adjusted our estimate to meet the new demands. Efforts of the Ministry of Shipping to evolve an order in our voyaging that would reduce irregularities had good results. The skilfully thought-out appointment of the ships to suitable routes and trades had effect in producing a homogeneity that furthered the employment of our resources to the full. The whole conduct of our seafaring speedily came within the range of governmental control, as affecting the timely dispatch and arrival of the convoys. The quality of our fuel, the state of the hull, competence of seamen, formed subject for close investigation. The rate of loading or discharge, the urgency of repairs and refitment, were no longer judged on the note of our single needs; like the states of the weather and the tide, they were weighed and assessed in the formula that governed our new fleet movements.