Unknown to E. A. Rigg, February 8, 1862

Maj. E. A. RIGG, First California Volunteer Infantry, Comdy. Fort Yuma: MAJOR: If the general court-martial recently convened at Fort Yuma has adjourned sine die without trying Lieutenant MacGowan, First California Infantry, release that officer from arrest and give him his appropriate duties under his commission. Forward to these headquarters the amount of all kinds of military stores you have on hand at the end of each ten days, commencing on the 15th instant; that is, of ammunition, subsistence, forage, hospital stores, and also of your means of transportation and the number of your intrenching tools. Keep me advised of the condition of your defenses atthe same time. In a word, I wish through your reports to see exactly your condition. I shall not expect that my instructions or orders to yourself are read by other parties, nor will you permit any letters for the press to leave your post, nor permit any discussions about the movements of the troops in this district, nor any speculations to be made audibly in relation to such movements. All that is desired, and this will be enforced, is prompt and implicit and quiet obedience to orders. Commenting and caviling belong not to the profession of arms. Reticence on the part of all is what is looked for and expected and required. I send Captain McCleave with thirty picked men of his company to act as scouts. If on his arrival it is found that any grazing can be had within twenty miles of your post where the remainder of the horses can be sent which belong to his company, I will order the balance of it over to report to you. Having this additional force to act as scouts to prevent surprise, I now order you to defend Fort Yuma while you have a man able to handle his musket. If you want more re-enforcements let me know by return express. I have no idea that Mr. Baylor will trouble you, but be on your guard all the time. Lieutenant Harvey, First California Volunteer Cavalry, is sent over to drill some of your men at the guns.

Respectfully, &c.,