It will be a long time before the quality of this profusely illustrated book is overtaken and the present spate of books on the subject of obstetric ultrasound may, as a result, suffer a numerical set-back - especially with translation into English which will "deliver the milk on everyone's doorstep". Two of the authors studied in our department in Glasgow and worked like If there are any rewards for teaching, then we humble Scots who demons. have had the privilege have had more than our share as a result of the pride with which we regard our pupils. In my own old age and looking back over the last thirty years, the innumer able difficulties, set-backs and disappointments have been more than compen­ sated for by those who have turned the subject from a laughable eccentricity (as I have at one time experienced) into a science of increasing exactitude. This transformation has come about, not by any efforts of mine, but by the enthusiasm and ingenuity of those who would probably have achieved as much on their own if given the encouragement which I ultimately received in Glasgow University life. Limbo must be the expected lot of most of us ordinary mortals but the work lives on. And so, in this reminiscent and philosophical mood I beg leave to quote a little poem which I wrote at an age when young men do that sort of thing.