There are rarely fireplaces or stoves in Mexican houses. Of course, in the tropics these are not required, but in the cities of the uplands it is often bitterly cold. There is a popular belief that warming the air of a room by artificial heat in the rarefied air of the uplands induces pneumonia, but it is doubtful if this has any real foundation. And the Mexican prefers to shiver under cover of a _poncho_, rather than to sit in comfort and warmth, after the European or American fashion. On the other hand, the Englishman who has experienced the inveterate habit of overheating of the houses and offices of New York or other parts of the United States will prefer the Mexican method. Nothing is more trying to the Briton than the sudden change of temperature from the high-heated American office or house to the bitter cold of its winter streets, such conditions as prevail in the United States: or the overheating of American trains. The architecture of Mexican cities is often of a solid and enduring type, especially the buildings of older construction; and many of these date from the time of the earlier viceroys. All public buildings and ecclesiastical edifices are of this nature. The modern buildings have, in some instances, followed out the same style, eminently suitable for the country, but others have adopted a bastard and incongruous so-called "modern" type, copied from similar structures in Europe or the United States, where pure utility of interior has been clothed with undignified exterior of commercial character, marking a certain spirit of transition in its inhabitants. This is partly due to the ruthless American industrial invasion, which, whilst it has valuable elements for the country, should not be allowed to stamp a shoddy modernism upon the more dignified antiquity of environment. This tendency, however, has not yet had time to show itself, except in a few instances in the capital. Nevertheless, some portions of the City of Mexico have already been spoilt by the speculative Anglo-American builder, who has generally called himself an architect in order to perpetrate appalling rows of cheap _adobe_ houses or pretentious-looking villas, made of the slimmest material and faced with that sin-covering cloak of _tepetatl_, or plaster "staff." Even some of the principal streets of the capital have been disfigured with hideous pretentious business structures, for which the Anglo-American element, whether in fact or example, has been responsible. If the Mexicans are wise they will sternly refuse to adopt much of steel construction or of "staff" and corrugated iron covering imported from the north, but to limit their buildings to native materials of stone or brick and their elevation to two or, at most, three storeys. The skyscraper is at home in New York or Chicago; in Mexico (or in London) it is the abomination of desolation. In San Francisco the outraged earth endeavoured to shake them off a year or so