2d. The lake of San Cristoval is immediately south of the preceding, and is likewise divided by a dam into two basins, the northern called the Laguna de Xaltocan and the southern San Cristoval. In the first of these divisions are the villages of Xaltocan and Tomantla, built upon islands. This lake is twelve feet eight inches higher than that of Tezcoco, and its superficial area nearly 4 square leagues. On its shore lies the village of San Cristoval.

3d. The lake of Chalco spreads out at the southern extremity of the valley, and contains the village of Jico built on an island in its bosom. It is divided from the lake of Xochimilco by a dam, or calzada, across which the road passes from Tuliagualco to San Francisco Tlaltenango.

4th. The lake of Xochimilco is separated, as we have described, from that of Chalco; both of these basins cover a superficial area of 61/2 square leagues; and their level, according to Baron Humboldt, is 3 feet 91/2 inches above the great square of Mexico.

5th. The lake of Tezcoco is that in which the ancient city of Tenochtitlan was built upon the spot at present occupied by the modern city of Mexico, whose walls, however, are now reached by a canal of nearly a mile in length from the western borders of this inland sea. The rivers Teotihuacan, Guadalupe or Tepeyacac, Papalotla and Tezcoco are voided into it. The difference between its water-mark and the level of Mexico, which in Humboldt's time was four feet and one inch has been found by recent measurements to be 18 inches more. Its superficial extent is about 10 square leagues, and its waters are plentifully impregnated with salt, supplying the material for numerous works which are rudely conducted. A thick crust or deposit of carbonate of soda constantly whitens the edges of this lake, which are left bare by the receding of the waters after they have been swept over the leeward shores by the strong winds that occasionally prevail in the valley. The deepest parts of the lake of Tezcoco never contain more than from 6 to 8 feet of water, while some portions are not covered by more than two or three feet. There are two springs of mineral waters in the neighborhood of the capital;—one at Guadalupe, three miles from Mexico, and another at El Peñon, a volcanic pustule which rises abruptly from the plain on the margin of the lake of Tezcoco. The temperature of the latter is quite high.

The mode in which the valley is relieved from the danger of inundations in consequence of the rising of the waters of the lakes has been already noticed in a previous portion of this work.[56] The desague, according to recent reports, requires considerable repairs and improvements for the future security of the capital.

The principal cities, towns and villages of this State are:—The national and state capital Mexico;—St. Angel, three leagues from the capital;—Tacubaya, about equidistant from Mexico, containing a number of beautiful residences, and an archiepiscopal Palace surrounded by groves and gardens; Santa Fé, Tlalpam or San Augustin de las Cuevas, four leagues south of the capital, situated upon the first slopes of the mountains, and filled with charming dwellings, to which the Mexicans occasionally retire during the warm season. It is in this town that the festival of St. Augustin is kept in the month of May, and during the three days of its celebration, Tlalpam is a scene of gaiety rarely equalled elsewhere on this continent. Rich and poor pour out from the capital to partake of the unrestrained amusements of the season, and thousands of dollars are lost at the gambling table or in the cock-pit, without which no Mexican festival is considered complete. The Mexican ladies appear at the balls which are given every night, or during the afternoon, on the green at the Calvario, and vie with each other in the splendor and variety of their dresses.

Ajusco, is a village south of Tlalpam:—Chalco, lies on the borders of the lake of that name, and is surrounded by the villages of Acohualpan, Totolapan, Tapostlan, Jico, Tlapacoya, Xochimilco, Mexicalcingo, Iztapalapan, Colhuacan, Huitzilopocho, Itztacualco, Churubusco, and Cuyuacan, most of which are inhabited by Indians and Mestizos who supply the markets of the capital. The Indians of Chalco, with their caballos de palo or "wooden horses," as they fancifully call their boats, carry on an extensive trade with Mexico and its vicinity. They navigate their lake and the canal leading to it with great dexterity; and large boats, capable of containing fifty or sixty persons, are almost daily seen leaving the landings at Mexico in order to convey passengers and freight to the neighboring country.

Tezcoco, lies on the eastern shore of the lake of that name, opposite Mexico, and at the distance of about 12 miles. It is no longer a town of much importance, but is interesting for its historical associations and for the ancient remains within its limits and neighborhood which will be subsequently described.

Tacuba is the site of the Spanish army's refuge after the noche triste or "melancholy night," during which Cortéz and his band were driven from the Aztec capital in the year 1520. The image of the Virgin of Remedios, has been generally kept in a chapel in this village, and has often been brought to the capital in seasons of danger, distress or disease.

Tlanepantla; Quautitlan; San Tomas; San Cristoval Xaltocan; Tonantla; Tehuiloyuca; Zumpango; Huehuetoca; are towns and villages north of Mexico.