This pioneering work on public health and urban planning was first published in 1844 by British physician and epidemiologist William Augustus Guy. Drawing on his extensive experience studying disease outbreaks in London and other cities, Guy argues that the health of urban populations is directly related to the quality of their living conditions, and advocates for a range of reforms to improve public health and safety. 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.