As a second advantage, the sliding seat decidedly relieves the abdominal muscles and respiratory organs during the recovery. In dealing with scientific racing we have previously remarked that the point wherein a tiring oarsman first gives way is in his recovery, because of the relative weakness of the muscles which conduct that portion of the action of the stroke. It therefore is obvious that any contrivance which can enable a man to recover with less exertion to himself will enable him to do more work in the stroke over the whole course, and still more so if the very contrivance which aids recovery also gives extra power to the stroke. On the other hand, there are two drawbacks to the slide. One of these is, that when sliding full forward the legs are more bent than would be the case on a fixed seat. The body cannot reach quite so far forward over the toes on a full slide as it can on a properly regulated fixed seat. This slightly detracts from the work of the _body_ at the beginning of the stroke. Again, when a slide is used to best advantage, the greatest mechanical benefit occurs just when the body arrives at the perpendicular, and when the legs are beginning to do the greater portion of their extension. This causes the greater force of the stroke to be applied behind the rowlock, in contradiction of all old theories of fixed-seat oarsmanship. Taking all _pros_ and _cons_ together, it has been practically proved beyond doubt to every rowing man for more than a decade that the slide gains much more than it sacrifices. Even bad sliding secures sufficient advantage to beat fixed-seat rowing (_ceteris paribus_), and good sliding completely distances fixed-seat performances. It is often remarked that the 'times' performed by sliding-seat crews are not glaringly superior to those of fixed-seat annals. This is correct. Nevertheless the balance is clearly in favour of sliding performances. The actual difference is much greater than times happen to disclose; it is somewhat fallacious to draw deductions from averages of recorded times, unless the individual condition of wind and weather, and of close or hollow races, be also chronicled for each year. On p. 106 record is given of the actual gain attained by Pembroke College crew within ten days of their essaying the use of slides. It may be added that Kingston, who adopted slides about the same day, displayed much about the same increase of speed, as shown by clocking and by comparing their times with those of other crews before and after their adoption of slides.