Transcriber’s Notes: Underscores “_” before and after a word or phrase indicate _italics_ in the original text. Equal signs “=” before and after a word or phrase indicate =bold= in the original text. Small capitals have been converted to SOLID capitals. Illustrations have been moved so they do not break up paragraphs. Old or antiquated spellings have been preserved. Typographical and punctuation errors have been silently corrected. The text has numerous references to “figure 18”, the schematic diagram for the “Operating Board”, however this figure appears to be not available. MANUAL FOR SUBMARINE MINING [Illustration] EDITION OF 1912 [Illustration] WASHINGTON GOVERNMENT PRINTING OFFICE 1912 WAR DEPARTMENT, Document No. 399. _Office of the Chief of Staff._ This Manual for Submarine Mining, revised to 1912, is approved and published for the confidential information and guidance of the Army of the United States. Under no circumstances shall its contents be divulged to persons not in the military or naval service of the United States. By order of the Secretary of War: WM. H. CARTER, _Major General, Acting Chief of Staff_. CONTENTS. Page. CHAPTER I. Definitions and general principles 7 II. Matériel of the system 11 III. Loading room duties 34 IV. Locating distribution box, laying multiple cable, marking out mine field 42 V. Assembling and planting mines 48 VI. Test of mines and apparatus 56 VII. Taking up mines 62 VIII. The mine command 65 APPENDIXES. 1. Explosives 69 2. Oil engine and generator 77 3. Storage battery 84 4. Submarine mine cable 92 5. Care and preservation of matériel 107 6. Instructions for masters of mine planters 111 7. Manual for small boats 115 8. Supply list 121 CHAPTER I. DEFINITIONS AND GENERAL PRINCIPLES.