General Order No. 100-Adjutant-General's Office. INSTRUCTIONS FOR THE GOVERNMENT OF ARMIES OF THE UNITED STATES, IN THE FIELD. PREPARED BY FRANCIS LIEBER, LL.D., AND REVISED BY A BOARD OF OFFICERS. NEW YORK: D. VAN NOSTRAND, 192 BROADWAY. 1863. Rifles and Rifle Practice. An Elementary Treatise on the Theory of Rifle Firing; explaining the causes of Inaccuracy of Fire and the manner of correcting it; with descriptions of the Infantry Rifles of Europe and the United States, their Balls and Cartridges. By Capt. C. M. WILCOX, U. S. A. New edition, with engravings and cuts. Green cloth. $1.75. "Although eminently a scientific work, special care seems to have been taken to avoid the use of technical terms, and to make the whole subject readily comprehensible to the practical enquirer. It was designed chiefly for the use of Volunteers and Militia; but the War Department has evinced its approval of its merits by ordering from the publisher one thousand copies, for the use of the United States Army."-Louisville Journal. "The book will be found intensely interesting to all who are watching the changes in the art of war arising from the introduction of the new rifled arms. We recommend to our readers to buy the book.”—Military Gazette. "A most valuable treatise."-New York Herald. "This book is quite original in its character. That character is completeness. It renders a study of most of the works on the rifle that have been published quite unnecessary. We cordially recommend the book."-United Service Gazette, London. "The work being in all its parts derived from the best sources, is of the highest authority, and will be accepted as the standard on the subject of which it treats."-New Yorker. Army Officer's Pocket Companion. Principally designed for Staff Officers in the Field. Partly translated from the French of M. DE ROUVRE, Lieutenant-Colonel of the French Staff Corps, with Additions from Standard American, French, and English Authorities. By WM. P. CRAIGHILL, First Lieutenant U. S. Corps of Engineers, Assist. Prof. of Engineering at the U. S. Military Academy, West Point. 1 vol. 18mo. Full roan. $1.50. "I have carefully examined Capt. CRAIGHILL'S Pocket Companion. I find it one of the very best works of the kind I have ever seen. Any Army or Volunteer officer who will make himself acquainted with the contents of this little book, will seldom be ignorant of his duties in camp or field." H. W. HALLECK, Major-General U. S. A. "I have carefully examined the 'Manual for Staff Officers in the Field.' It is a most invaluable work, admirable in arrangement, perspicuously written, abounding in most useful matters, and such a book as should be the constant pocket companion of every army officer, Regular and Volunteer." G. W. CULLUM, Brigadier-General U. S. A. Chief of General Halleck's Staff, Chief Engineer Department Mississippi. "This little volume contains a large amount of indispensable information relating to officers' duties in the siege, camp, and field, and will prove to them a most valuable pocket companion. It is illustrated with plans and drawings." -Boston Com. Bulletin. General Order No. 100-Adjutant-General's Office. INSTRUCTIONS FOR THE GOVERNMENT OF ARMIES OF THE UNITED STATES, IN THE FIELD. PREPARED BY FRANCIS LIEBER, LL.D., AND REVISED BY A BOARD OF OFFICERS. NEW YORK: D. VAN NOSTRAND, 192 BROADWAY. 1863. Was 2958.63.11 LARVARD COLLEGE LIBRARY FROM THE ESTATE OF GEORGINA LOWELL MAY 6, 1924 B GENERAL ORDERS, No. 100. } WAR DEPARTMENT, The following "Instructions for the Government of Armies of the United States in the Field," prepared by FRANCIS LIEBER, LL. D., and revised by a Board of Officers, of which Major-General E. A. HITCHCOCK is president, having been approved by the President of the United States, he commands that they be published for the information of all concerned. BY ORDER OF THE SECRETARY OF WAR: E. D. TOWNSEND, Assistant Adjutant-General. INSTRUCTIONS FOR THE GOVERNMENT OF ARMIES OF THE UNITED STATES IN THE FIELD. SECTION I. Martial law-Military jurisdiction-Military necessity Retaliation. 1. A place, district, or country occupied by an enemy stands, in consequence of the occupation, under the Martial Law of the invading or occupying army, whether any proclamation declaring Martial Law, or any public warning to the inhabitants, has been issued or not. Martial Law is the immediate and direct effect and consequence of occupation or conquest. The presence of a hostile army proclaims its Martial Law. 2. Martial Law does not cease during the hostile occupation, except by special proclamation, ordered by the commander-in-chief; or by special mention in the treaty of peace concluding the war, when the occupation of a place or territory continues beyond the conclusion of peace as one of the conditions of the same. 3. Martial Law in a hostile country consists in the suspension, by the occupying military authority, of the criminal and civil law, and of the domestic administration and government in the occupied place or territory, and in the |