When a coxswain has steered a course more than once he begins to know his landmarks and their bearing upon each part of the course. There is less strain upon his mind, and he becomes able to observe greater accuracy. There is nothing like having the 'eye well in' for any scene of action. A man plays relatively better upon a billiard-table or lawn-tennis ground to which he is well accustomed than on one to which he is a stranger; and a jockey rides a horse all the better for having crossed him before the day of a race. However good a coxswain may be, he will steer a course more accurately, on the average, in proportion as he knows it more or less mechanically. There is also a good deal in knowing the boat which has to be steered. No two ships steer exactly alike. Some come round more easily than others; some fetch up into the wind more freely than others. In modern times it has been a common practice for builders to affix a movable 'fin' of metal to the bottom of a racing eight or four, under the after canvas, which fin can be taken out or fixed in at option. In a cross wind this helps to steady the track of a boat; but, unless wind is strong and is abeam for a good moiety of the distance, the draw of the water all the way occasioned by the fin costs more than the extra drag of rudder which it obviates for just one part of the course. In steering round a corner a coxswain should bear in mind that he must not expect to see his boat pointing in the direction to which he desires to make. His boat is a tangent to a curve, the curve being the shore. His bows will be pointing to the shore which he is avoiding. It is the position of his midship to the shore which he is rounding that he should especially note. The boat should be brought round as gradually as the severity of the wave will allow. If the curve is very sharp, like the corners of the 'Gut' at Oxford, or 'Grassy' or Ditton corners at Cambridge, the inside oars should be told to row light for a stroke or two. It will ease their labour, and also that of the oars on the other side. When there is a stiff beam wind the bows of a racing craft tend to bear up into the wind's eye. The vessel is making leeway all the time; therefore if the coxswain on such an occasion steers by a landmark which would guide him were the water calm, he will before long find himself much to leeward of where he should be. In order to maintain his desired course he should humour his boat, and allow her bow to hold up somewhat into the wind (to windward of the landmark which otherwise would be guiding him). To what extent he should do so he must judge for himself, according to circumstances and to his own knowledge of the leeward propensities of his boat. To lay down a hard-and-fast rule on this point would be as much out of place as to attempt to frame a scale of allowance which a Wimbledon rifleman ought to make for mirage or cross-wind, when taking aim at a distant bull's-eye.