A touching and beautifully written memoir of Archibald Don, a young Scottish physician and scientist who died tragically young, but who made a lasting impact on the fields of medicine and physiology. Written by Don's friend and colleague Charles Sayle, this book offers a rare glimpse into the mind and life of a remarkable young man, and a poignant tribute to a life cut tragically short. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.