Mahan's Permanent Fortifications is a book written by Dennis Hart Mahan and first published in 1887. The book is a comprehensive guide to the design and construction of permanent fortifications, covering topics such as the selection of sites, the design of defensive works, and the use of various materials in construction. Mahan draws on his extensive experience as a military engineer to provide detailed explanations of the principles of fortification, as well as practical advice on the construction process. The book also includes numerous illustrations and diagrams to help readers understand the concepts presented. Mahan's Permanent Fortifications is considered a classic work in the field of military engineering, and is still used as a reference by military engineers and historians today.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.