Talking of earthquakes, it is to be remembered that we are in a district where they are of continual occurrence. If one looks carefully at a line of houses in a street, it is curious to see how some walls slope inwards, and some outwards, and some are cracked from top to bottom. There is hardly a church-tower in Mexico that is not visibly out of the perpendicular. Any one who has noticed how the walls of the Cathedral of Pisa have been thrown out of the perpendicular by the settling down of the foundations, will have an idea of the general appearance of the larger buildings of Mexico. On different occasions the destruction caused by earthquakes has been very great. By the way, the liability of Mexico to these shocks, explains the peculiarity of the building of the houses. A modern English town with two-or-three-storied houses, with their thin brick walls, would be laid in ruins by a shock which would hardly affect Mexico. Here, the houses of several storeys have stone walls of such thickness that they resist by sheer strength; and the one-storey mud houses, in the suburbs, are too low to suffer much by being shaken about. A few days before we arrived here, our friends Pepe and Pancho were playing at billiards in the Lonja,[8] the Merchants’ Exchange; and Pepe described to us the feeling of utter astonishment with which he saw his ball, after striking the other, go suddenly off at an absurd angle into a pocket. The shock of an earthquake had tilted the table up on one side. While we were in Mexico there was a slight shock, which set the chandeliers swinging, but we did not even notice it. In April, a solemn procession goes from the Cathedral, on a day marked in the Calendar as the “Patrocinio de Señor San Jose”, to implore the “Santissimo Patriarca” to protect the city from earthquakes (temblores). In connection with this subject there is an opinion, so generally received in Mexico that it is worth notice. Everybody there, even the most educated people, will tell you that there is an earthquake-season, which occurs in January or February; and that the shocks are far more frequent than at any other time of the year. My impression is that this is all nonsense; but I should like to test it with a list of the shocks that have been felt, if such a thing were to be had. It does not follow that, because the Mexicans have such frequent opportunities of trying the question, they should therefore have done so. In fact, experience as to popular beliefs in similar matters rather points the other way. I recollect that in the earthquake districts of southern Italy, when shocks were of almost daily occurrence, people believed that they were more frequent in the middle four hours of the night, from ten to two, than at other times. Of course, this proved on examination to be quite without foundation. To take one more case in point. How many of our almanack-books, even the better class of them, contain prophecies of