This book provides an analytical and mathematical explanation of the conditions that influence the tides in Penobscot Bay. The author, William Ferrel, presents meteorological data, tidal observations, and historical trends to support his thesis. The book is an essential resource for anyone who wishes to understand how tides work and the impact that they have on coastal communities. 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.