Any common map of North America will show in an instant the route followed by Lieutenant Emory. Starting from Fort Leavenworth, which is situated a little north of the junction of the Kanzas with the Missouri, he marched in a south-westerly direction to Santa Fé, then nearly due south through the country of the Navajos and Apaches Indians, and then west to San Diego on the Pacific. A great portion of this route was through regions previously little explored. The contrary was the case with its earliest portion, namely, from Fort Leavenworth to Bent's Fort, which has been much visited. It is not till he quits the latter place that Lieutenant Emory commences his miscellaneous notes, previously confining himself to scientific, and especially astronomical, observations. From Bent's Fort to Santa Fé was little more than a fortnight's march. At Santa Fé the Mexican general, Armijo, was in command, and there might probably be fighting. But on the approach of the invaders, Armijo's heart failed him: he abandoned, without a shot, his advantageous and very defensible position, and fled southwards. "As we approached the ruins of the ancient town of Pecos, a large fat fellow, mounted on a mule, came towards us at full speed, and extending his hand to the general, congratulated him on the arrival of himself and army. He said, with a roar of laughter, 'Armijo and his troops have gone to h--, and the Cañon is all clear.' This was the Alcalde of the settlement, two miles up the Pecos from the ruins where we encamped. Pecos, once a fortified town, is built on a promontory or rock, somewhat in the shape of a foot. Here burned, until within seven years, the eternal fires of Montezuma, and the remains of the architecture exhibit, in a prominent manner, the engraftment of the Catholic church upon the ancient religion of the country. At one end of the short spur forming the terminus of the promontory, are the remains of the _estufa_, (stove or furnace for the preservation of the eternal fire,) with all its parts distinct; at the other are the remains of the Catholic church, both showing the distinctive marks and emblems of the two religions. The fires from the _estufa_ burned and sent their incense through the same altars from which was preached the doctrine of Christ. Two religions so utterly different in theory were here, as in all Mexico, blended in harmonious practice until about a century since, when the town was sacked by a band of Indians. Amidst the havoc of plunder, the faithful Indian managed to keep his fire burning in the _estufa_, and it was continued till a few years since, when the tribe became almost extinct. Their devotions rapidly diminished their numbers, until they became so few as to be unable to keep their immense _estufa_ (forty feet in diameter) replenished, when they abandoned the place and joined a tribe of the original race over the