HEADQUARTERS ARMY OF THE POTOMAC, April 18, 1862.

(Received April 19, 1862,9.40 a.m.)

General RIPLEY, Chief of Ordnance:

Will be glad to have another 200-pounder Parrott. Can provide for more if you have them. Will aslo be glad to have more 10-inch

sea-coast mortars. Send the additional 13-inch mortars. Can use them well. Pleasure hurry up ammunition.

GEO. B. McCLELLAN,
Major-General.

ORDDNANCE OFFICE, Washington, April 18, 1862-12,35 p.m.

Major General GEORGE B. McCLELLAN,

Army of the Potomac, near Yorktown, Va.:

Telegram received. The first 200-pounder and carriage were shipped from Cold Spring on the 8th instant to Fort Monroe. Lieutenant Baylor has been instructed to hold it subject to your order. The second one is finished, and will be sent to Fort Monroe at once; it will be placed at your disposal if you desire it. Have no more siege mortars finished. Have ordered Colonel Ramsay to send you ten 10-inch sea-coast mortars. Can let you have ten more 13-inch

sea-coast mortars if you want them.

A large supply of 3-inch ammunition will be sent down to the arsenal at Fort Monroe at once.

JAS. W. RIPLEY,

Brigadier-General.

UNITED STATES FLAG-SHIP MINNESOTA, Hampton Roads, April 18, 1862.

Captain A. A. HARWOOD,

Chief of Ordnance:

The 100-pounder Parrott is at present the only gun that can avail us anything at Yorktown. They are of immense service. The carriage of the Sebago's 100-pounder has already given out in firing upon that place. Send us another one to replace it in the earliest possible way. Send us, too, four more 100-pounder Parrotts, with carriages for ship-board and fitments complete. Send us also a full supply of projectiles for 100-pounder Parrotts. We shall have to use a great many of them, and there are none on hand in charge of our ordnance officer at Fort Monroe.

L. M. GOLDSBBOROUGH,

Flag-Officer.

HEADQUARTERS ARMY OF THE POTOMAC, April 18, 1862.

General M. C. MEIGS,
Quartermaster-General:

General Van Vliet has applied to you have some officers of h is department ordered here. Their services are very much needed, and they should be ordered here immediately.

GEO. B. McCLELLAN,

Major-General.