by the Isthmus of Panama, washed East and West by the oceans, and determined, roughly speaking, towards the North by a line starting from the head of the Gulf of California, and sweeping round to the mouths of the Mississippi with a curve that takes in Arizona and Southern Texas. In our day, this southern portion of North America is broken into two great divisions, the first and most southern of which is known collectively as Central America, and embraces the republics of Guatemala, Honduras, Nicaragua, Costa Rica, San Salvador and Panama. The great peninsula of Yucatan, which is now Mexican, formerly belonged to this group of Central American peoples. The second portion of the territory we are to study corresponds to the present republic of Mexico. I shall presently explain the sense in which it might be called the Mexican empire in the time of Fernando Cortes. For the present, let me ask you to remember that we are now about to speak, in a general and preliminary manner, of the region which pretty closely corresponds to the present Central America and Mexico.
To begin with, we treat these two districts as a
