New York, Dec. 1.- The office of the Cuban junta at 56 New street was crowded with patriots Tuesday who heard that important news of additional victories over Spanish arms had arrived from the field. President Lomas Estrada Palma had received a packet of letters whlch were conveyed to him by a special emis.sary. Of victories upward of six were described, the most important of which was the wresting from the Spanish soldiers of the city of Guaymaro, in the province of Puerto Principe. The Communications were written by a lieutenant of General Calixto García at his ülctation. Garcia is the commander of the Cuban army of the Orienti. His immediate forces, he said, crossed the border from the province of Santiago de Cuba on Oct. 10. With 4,000 men he commenced on the second day thereafter a determined attack upon the city of Guaymaro. Out side of Puerto Principe itself this place is considered one of the most important in the entire province. SurrouuUed by Fort. An advance guard reported that the city had sixteen forts surrounding it and was defended by a garrison of 1,000 men. The forts were supplied with heavy cannon and a number of sharpshooters were collected in the turrets. Garcia made a demonstration to the eastward of the city and sent a large detachment of his men to make attacks at two other quarte,rs. The garrison assembled almost to a man to beat off Garcia's command. A volley of lead was sent into the nearest forts. Thls was the signal for an attack by the other forces. The roaring of cannon and the crack of Mauser rifles succeeded. A shell was thrown into the heart of the city and exploded in one of the main streets, causlng consternation among the troops. The taking of the city, however, proved a more difflcult matter than was calculated upon. The Spaniards constructed breastworks and dug trenches, whlch made quick advance difficult and dangerous. The siege lasted twelve days, during whlch time the forts were dismantled and many of the garrison killed. l.it He Loss to Iasurgents. The insurgent troops were hid in the adjoining woods and suffered little loss. On Oct. 24 the Spanish commander was killed, and on the evenlng of that day the captain who took hls place surrendered. Many of the Spaniards escaped, but 295 of them were found In the city when Garcia tookpossesslon. Of offleers there were a captain, four lieutenants, eight sergeants, sixteen corporals and one physician. The booty was very satisfactory. Upwara of $21,000 in gold was taken, 225 Mauser rifles, 100,000 rounds of ammunition, sixteen pack mules, medicines, machetes, and a large quantity of provisions and clothing. The ofneers were all armed and, in accordance with the rule of the new Cuban republic, set at liberty. The common soldiers at their own request were set to work on the farms in possession of the insureents.