B. P. Learned to Thomas Allcock, August 4, 1864

Lieut. Col. THoMAS ALLCOCK, Commanding Fourth New York Artillery :

COLONEL: By direction of Colonel Abbot, I have the honor to transmit herewith Special Orders, No. 100, Artillery Headquarters, Army of the Potomac, August 3, 1864, relieving your regiment from duty with the siege train. The companies (A and M) at these headquarters are ordered to report to you at once. In taking leave of the regiment the colonel commanding desires to thank you for its cordial co-operation during the last few weeks. In preparing the siege batteries it has taken a prominent part, and in serving its guns (six 44-inch guns, Company H, Capt. A. C. Brown commanding, and twelve Coehorn mortars, Companies K and L, Capt. S. F. Gould and Second Lieut. Frank Seymour commanding) it has maintained the reputation well earned by its previous services during the campaign.

very respectfully, your obedient servant