Sir, – An astute reader very rightly brought to my attention that there was a missing page in the Andrew Livsey article as published last edition evident between endnotes 19 and 28 (110/4,1472–3). Herewith is included the missing page for your edification (the endnotes as printed are otherwise correct): As we have seen, course length had been an issue from the start and at Admiralty insistence it was reduced: from the third course onwards PWOs were trained in 29 rather than 37 weeks. It was the lectures rather than sea or simulator based training which were lost, though some were just shifted…