This scholarly report presents the findings of the Michael Sars North Atlantic deep-sea expedition, one of the most ambitious oceanographic expeditions of the early 20th century. It includes detailed descriptions of the equipment used, the methods employed, and the specimens collected, as well as a wealth of data on the biology and geology of the deep-sea environment. Whether you're a marine biologist, a historian of science, or simply fascinated by the mysteries of the ocean, this book is a must-read. 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.