_December 5th._--We all thought yesterday, that last night would close our stay in camp Belknap, as we had received orders to embark on the first boat, for Camargo, and thence to Monterey. The joyous excitement this news diffused among us, surpasses any description I can give. In our company the whole night was spent in music and dancing. Our musicians acquitted themselves ably. Our captain and others joined in our merriment. I was on duty as corporal of the police, and as the officer of the day only ordered me to suppress all riots, and see that the lights were put out at tattoo, I did not think dancing included, so I joined in the festivities with an ardor that has rendered me to-day almost unable to walk, and my head aches as if it would split. “Those who dance must pay the fiddler.” We have just removed to the river, where we will await conveyance. _7th._--Night before last seven companies of the regiment embarked for Camargo, leaving the two rifle companies and Spencer Greys for the next boat. We are detained in consequence of the captain refusing to go on the steamer Enterprise, as it is too small to be safe for three companies. So the Lanesville Legion took our place, it being a smaller company. We expected to start next morning, but have been disappointed. Last night we were thrown into great excitement by the alarm of an attack from the enemy. Just before dark the general and others thought they heard sounds of a bugle, in the chaparel on the Mexican side of the river, supposing them to proceed from the enemy. In consideration of our exposed position,--there being only one hundred and fifty of us, with but little ammunition, it was thought prudent to station a picket around the camp. The three companies were ordered out, and four cartridges apiece distributed, then marched up to be reviewed by the general. He told us what he had heard, and other causes which made our position a dangerous one. He urged the necessity of watchfulness, saying that we would never have so good an opportunity of showing what we were made of. Many other things he said, calculated to excite our attention, then dismissed us charging us to lay near our arms, and not be taken by surprise. We returned to our tents, and arranged everything, and lying as directed upon our arms, we made up our minds to do our best, if we were disturbed before morning. About two hours after midnight, we were suddenly aroused by a discharge of musketry from our outpost, and the cry, “to arms, to arms.” In ten minutes the whole three companies were at the general’s quarters.