Newspaper Clipping, 1862 July 22Fort Sumter and Fort Moultrie National Historical ParkIncomplete article discussing African-Americans, perhaps promoting segregation (?)
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 September 22, James Wallace to Brooks, regarding Parrott guns that failed [Verso]National Park ServiceLetter to Brooks from James Baldwin, reporting results of Baldwin's examination of the 100 and 200 Pdr Parrott guns that failed during the bombardment of Ft. Sumter. The number of rounds at which guns failed, signs of crystallization, cracks, and fractures in the guns are detailed.