79. The First Parallel, 78 80. Opening the Parallel, 80 81. The Second Artillery Position, 81 82. Counter-batteries, 82 83. Enfilading-batteries, 82 84. Breaching-batteries, 83 85. Batteries of Rifled Mortars and of Howitzers for Vertical Fire, 83 86. Opening and Conduct of Fire from Second Artillery Position, 83 87. Musketry Fire, 84 88. The Advance from the First Parallel, 84 89. The Second Parallel, 85 90. The Third Period, 86 91. Capture and Crowning of the Covered Way, 87 92. Breaching the Scarps and Counter-scarps, 88 93. Capture and Crowning of the Breach, 89 94. The Attack by Sap, 91 95. Additional Operations Necessary in the Attack of an Intrenched Camp, 91 96. Occupation of a Conquered Place, 93 97. Vauban’s Maxims, 94 98. Journal of the Attack, 97 CHAPTER VI. THE DEFENCE. 99. Preliminary Considerations, 98 100. Garrison, 99 101. Armament, 100 102. Ammunition, Provisions and Supplies, 101 103. Sanitation and Hygiene, 101 104. Preparations for Defence, 101 105. Defence during the First Period, 103 106. Opening of Artillery Fire by the Defence, 104 107. Defence during the Bombardment and Assault, 105 108. Defence during the Second Period of the Siege, 106 109. Defence during the Third Period of the Siege, 107 110. The Capitulation, 109 111. Journal of the Defence, 110 CHAPTER VII. PARKS, DEPOTS, SHELTERS AND HUTS, KITCHENS, OVENS, SINKS, LATRINES, WATER-SUPPLY, ETC. ARTICLE PAGE 112. Parks and Depots, 111 113. Shelters and Huts, 113 114. Kitchens and Ovens, 114 115. Latrines, Sinks, etc., 115