His majesty used to spend his afternoons here on the shady side of the hill, apparently sitting up to his middle in water, like a frog, if one may judge by the height of the little seat in the bath. If, as some writers say, these were only tanks with streams of running water, and not baths at all, why the steps cut in their sides, which are just large enough and high enough for a man to sit in? No water has come there for centuries now; and the morning-sun nearly broiled us, till we got into a sort of cave, excavated in the hill, it is said, with an idea of finding treasure. It seems there was once a Mexican calendar cut in the rock at this spot; and some white people who were interested in such matters, used to come to see it, and poke curiously about in search of other antiquities. Naturally enough, the Indians thought that they expected to find treasure; and with a view of getting the first chance themselves, they cut down the calendar, and made this large excavation behind it.

Here we sat in the shade, breakfasting, and hearing Mr. Bowring’s stories of the art of medicine as practised in the northern states of Mexico, where decoction of shirt is considered an invaluable specific when administered internally; and the recognised remedy for lumbago is to rub the patient with the drawers of a man named John. No doubt the latter treatment answers very well!

OLD MEXICAN BRIDGE NEAR TEZCUCO.

There is an old Mexican bridge near Tezcuco which seems to be the original Puente de las Bergantinas, the bridge where Cortes had the brigantines launched on the lake of Tezcuco. This bridge has a span of about twenty feet, and is curious as showing how nearly the Mexicans had arrived at the idea of the arch. It is made in the form of a roof resting on two buttresses, and composed of slabs of stone with the edges upwards, with mortar in the interstices; the slabs being sufficiently irregular in shape to admit of their holding together, like the stones of a real arch. One may now and then see in Europe the roofs of small stone hovels made in the same way; but twenty feet is an immense span for such a construction. I have seen such buildings in North Italy, in places where the limestone is so stratified as to furnish rough slabs, three or four inches thick, with very little labour in quarrying them out. In Kerry there are ancient houses and churches roofed in the same way. What makes the Tezcuco bridge more curious is that it is set askew, which must have made its construction more difficult.

The brigantines which the Spaniards made, and transported over the mountains in such a wonderful manner, fully answered their purpose, for without them Mexico could hardly have been taken. After the Conquest they were kept for years, for the good service they had done; but vessels of such size do not seem to have been used upon the lake since then; and I believe the only sailing craft at present is Mr. Bowring’s boat, which the Indians look at askance, and decidedly decline to imitate. It is true that, somewhere near the city, there is moored a little steamer, looking quite civilized at a distance. It never goes anywhere, however; and I have a sort of impression of having heard that when it was first made they got up the steam once, but the conduct of the machinery under these circumstances was so extraordinary and frantic that no one has ventured to repeat the experiment.

Before we left Tezcuco, we went in a boat to explore Mr. Bowring’s salt-works, which are rather like the salines of the South of France. Patches of the lake are walled off, and the water allowed to evaporate, which it does very rapidly under a hot sun, and with only three-fourths of the pressure of air upon it that we have at the sea-level. The lake-water thus concentrated is run into smaller tanks. It contains carbonate and sesquicarbonate of soda, and common salt. The addition of lime converts the sesquicarbonate of soda into simple carbonate, and this is separated from the salt by taking advantage of their different points of crystallization. The salt is partly consumed, and partly used in the extraction of silver from the ore, and the soda is bought by the soap-makers.

Humboldt’s remarks on the small consumption of salt in Mexico are curious. The average amount used with food is only a small fraction of the European average. While the Tlascalans were at war with the Aztecs, they had to do without salt for many years, as it was not produced in their district. Humboldt thinks that the chile which the Indians consume in such quantities acts as a substitute. It is to be remembered that the soil is impregnated with both salt and natron in many of these upland districts, and the inhabitants may have eaten earth containing these ingredients, as they do for the same purpose in several places in the Old World.

We disembarked after sailing to the end of these great evaporating pans, and found horses waiting to take us to the Bosque del Contador. This is a grand square, looking towards the cardinal points, and composed of ahuehuetes, grand old deciduous cypresses, many of them forty feet round, and older than the discovery of America. My companion, not content with buying collections at secondhand, wished to have some excavations made on his own account, and very judiciously fixed on this spot, where, though there were no buildings standing, the appearance of the ground and the mounds in the neighbourhood, together with the historical notoriety of the place, made it probable that something would be found to repay a diligent search. This expectation was fully realized, and some fine idols of hard stone were found, with an infinitude of pottery and small objects.