From the National Archives, RG 109, Ch. 6, Vol. 707-709; "Letters Received and Sent, Chimborazo Hospital. 1861-64." 3 Vols: Vol. 708, p. 181
Medical Director's Office
Richmond, July 28th 1863
The directions to the contrary given you on June 3rd are hereby revoked, and, in future the capacity of the Hospital under your charge will be regulated by the allowance of 800 cubic feet to each patient.
Yr Obt Servt
Wm. A. Carrington
Surgeon J. B. McCaw
In Charge of Chimborazo Hospital