Note 23 — Chapter X · TEZCUCO. MIRAFLORES. POPOCATEPETL. CHOLULA.

I was surprised to find Iztaccihuatl classed among the active volcanos in Johnston’s Physical Atlas, and supposed at first that a crater had really been found. But it is likely to be only a mistake, caused by the name of “Volcan” being given to both mountains by the Mexicans, who used the word in a very loose way.