Data from experiments on sand, sand bags, etc. and work relating to siege works, Morris Island, July-September 1863National Park ServiceTables of data from experiments measuring weights of dry and wet sand, data showing penetration of Sharps, Enfields, and Spencer Rifles and Coehorn mortar shells into materials such as sand bags, sand bags filled with cotton, fascines, and pine. Also contains tables of data showing how much dirt can be dug by men in a period of time.
Letter, 1863 December 28, Wilcken to Brooks, on an arrangement for exploding torpedoes [Verso]National Park ServiceLetter to Brooks from Wilcken stating that a sketch of an arrangement for exploding torpedoes is enclosed. Wilcken also provides the names of the officers who assisted him in the sapping operations and in building splinter-proofs. Wilcken writes that to the best of his knowledge nine (9) torpedoes exploded accidentally during the siege.
Letter, 1863 September 15, Baldwin to Major Brooks [Verso]National Park ServiceLetter to Brooks from Baldwin, reporting results of Baldwin's experiments with the boat and oars constructed at the Engineer Depot. Baldwin reports that the 1000 pound boat can be carried with difficulty by twenty men.
Sketch and plan of direct communication with the front along the beachNational Park ServiceSuess' sketch and written description of the plan of forming a direct communication along and parallel to the beach, connecting forward lines. Includes detailed drawing of trenches, 4th and 5th Parallels.