This memoir, written by Henry Leffmann and published in 1914, provides a first-hand account of his experiences as the Port Physician of Philadelphia in the late 19th and early 20th centuries. Leffmann describes the various health issues he encountered among incoming ships and crew, as well as the steps he took to prevent the spread of disease. The book also includes a brief history of the port of Philadelphia. 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.