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Start Over Subjects Military Science ✖Remove constraint Subjects: Military Science Subjects United States. Army. ✖Remove constraint Subjects: United States. Army. Titles Letter of James F. Gregory, Lieut. Colonel and A.D.C., to Lieut. General P.H. Sheridan, concerning telegraphic code ✖Remove constraint Titles: Letter of James F. Gregory, Lieut. Colonel and A.D.C., to Lieut. General P.H. Sheridan, concerning telegraphic code Languages English ✖Remove constraint Languages: English Dates by Range 1850-1899 ✖Remove constraint Dates by Range: 1850-1899

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  • Letter of James F. Gregory, Lieut. Colonel and A.D.C., to Lieut. General P.H. Sheridan, concerning telegraphic code1