This report, addressed to the Hon. Jefferson Davis, Secretary of War, provides a detailed analysis of the effects of firing heavy ordnance from casement embrasures, as well as the effects of firing against the same embrasures with various kinds of missiles. Drawing on extensive testing and experimentation, the author provides valuable insights into the dynamics of siege warfare and the challenges faced by defenders of fortified positions. This book is a must-read for military historians and enthusiasts alike.

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